Ferrari have continued their eye-catching start to 2016 winter testing as Sebastian Vettel topped the timesheet for the second day in a row at Barcelona.The Scuderias new SF16-H, considered the most radical of this years cars, set a blistering pace as Vettel sampled Pirellis ultrasoft tyre for the first time.The car is a step forward, so that is positive, and the power unit has improved. We know there are areas we still need to improve but overall I am happy, said Vettel. The Germans 1:22.810 lap proved 0.7s quicker than second-placed Daniel Ricciardo, despite the Red Bull driver also trying out the purple-striped tyre - the new fastest compound in Pirellis range. With Ferrari and Red Bull completing qualifying-style short runs before the lunchbreak, world champions Mercedes stuck to their own programme and instead focused on stints on the slower medium tyre.Nico Rosberg may have ended his first day in the W07 two seconds off Ferraris pace as a result, but Mercedes again dominated the mileage charts with the German adding 172 laps to the 156 Lewis Hamilton completed on Day One.Mercedes innovation delights RosbergThe world champions were quicker than Ferrari when both teams were running on the medium rubber mid-way through the morning, but the W07s advantage was less than a tenth of a second. Ferrari driver Sebastian Vettel thinks that this years car is a step forward, and thinks the power unit has also improved Mercedes were not alone in running long on Tuesday as six other teams also topped 100 laps - including McLaren.On the day it was announced Honda F1 chief Yasuhisa Arai was being replaced, Fernando Alonsos first day in the MP4-31 saw him complete 119 laps - more than he managed in the whole of McLarens wretched 2015 winter. Sky Sports News Rachel Brookes wraps up the second day of testing in Barcelona But while the opening two days of testing appear to have proved the teams reliability has improved, questions remain over its competitiveness after Alonso finished only ninth, three seconds off Ferrari.Our next step is to find the performance. Im sure it will arrive because McLaren know how to produce a fast car and Honda, however long it takes, know how to provide a powerful engine. I dont know if it will be super-competitive but at least it will be competitive, the Spaniard told Sky Sports. The two-time champion later insisted that he would be staying on at McLaren.Honda boss Arai to stand down Watch footage of the 2016 McLaren at the first pre-season test in Barcelona Another driver making his first appearance of the year was Force Indias Sergio Perez and the Mexican enjoyed a strong day, finishing third after a best lap of 1:23.650 on the supersoft tyres.With Marcus Ericsson fifth in the 2015 Sauber, newcomers Haas were just behind in their first-ever F1 car. After flying in a fix for the front wing which failed when Romain Grosjean was in the car on Monday, Haas were able to run trouble-free and Esteban Gutierrez finished an impressive sixth.As has become their trademark, Williams again gave little away over the performance of their new FW38 car. Valtteri Bottas was third fastest on Day One but slipped down to seventh on Tuesday, although he too comfortably cleared a century of laps. Manor enjoyed another productive day with their new Mercedes-engined car, finishing eight with Pacal Wehrlein, but it was another day to forget for the other 2016 rookie in action, Britains Jolyon Palmer.After reliability problems restricted the new Renault drivers running on Monday, his final day in the car this week was cut short after just 42 laps when his RS16s power unit seized up.Positive progress in F1 meeting in Geneva on sports futureDay Two Timesheet1. Sebastian Vettel, Ferrari, ultrasoft tyres, 1:22.810, 126 laps;2. Daniel Ricciardo, Red Bull, ultrasoft tyres, 1:23.525, 112 laps;3. Sergio Perez, Force India, supersoft tyres, 1:23.650, 101 laps;4. Nico Rosberg, Mercedes, medium tyres, 1:24.867, 172 laps;5. Marcus Ericsson, Sauber, soft tyres, 1:25.237, 108 laps;6. Esteban Gutierrez, Haas, soft tyres, 1:25.524, 79 laps; 7. Valtteri Bottas, Williams, soft tyres, 1:25.648, 134 laps;8. Pascal Wehrlein, Manor, soft tyres, 1:25.925, 71 laps;9. Fernando Alonso, McLaren, soft tyres, 1:26.082, 119 laps;10. Jolyon Palmer, Renault, soft tyres, 1:26.189, 42 laps;11. Max Verstappen, Toro Rosso, soft tyres, 1:26.755, 121 laps.Keep up to speed with all the latest news, pictures and video from all eight days of F1 testing via the daily live blog on the Sky Sports website and mobile apps. Sky Sports News HQ will also broadcast regular updates from trackside in Barcelona. Every race live in 2016 Sky Sports F1 brings you every race live in 2016. Fast and easy online upgrade - click here.Also See:Every 2016 race liveTeds Notebook: Day TwoLukasz Piszczek Jersey . According to a report from the Winnipeg Free Press, the Bombers will name Acting GM Kyle Walters to the post full time. Shinji Kagawa Jersey . Its the second straight game Bell has scored in extra time for Kelowna, which beat the Brandon Wheat Kings 6-5 on Friday, and he now has four game-winning goals on the season. http://www.footballdortmundpro.com/Kids-Achraf-Hakimi-Jersey/ . -- Jakob Silfverberg is making himself right at home with the Anaheim Ducks, scoring four goals in his first four games. Marius Wolf Jersey . Each of Houstons starters scored in double figures as the Rockets improved to 2-0 against the Spurs this season, with both victories coming on the road. They also moved within 3 1/2 games of San Antonio (22-7) for the lead the Southwest Division. Achraf Hakimi Dortmund Jersey . Its the second straight game Bell has scored in extra time for Kelowna, which beat the Brandon Wheat Kings 6-5 on Friday, and he now has four game-winning goals on the season.CHICAGO -- Bulls rookie Denzel Valentine is expected to miss at least two weeks because of a sprained left ankle, coach Fred Hoiberg said after practice Tuesday.Denzel, hes doing OK, Hoiberg said. Hes probably going to miss, Id say conservatively, probably two weeks. (The ankle) is pretty swollen, it swelled up on him right away.Its just about getting him right, keeping him engaged with what were trying to do with adding to our package and trying to get him better as quick as possible.Valentine, who sprained the ankle during the second half Monday night in a loss to the Milwaukee Bucks, wore a small protective brace around the ankle as he walked to meet the media after practice.Its a normal sprain, Valentine said. Just got to let it heal first and then it will be day-to-day. Just trying to rehab it as best I can.Valentine did not seem too concerned about the injury and seemed comfortable with his initial performance before tweaking his ankle. Valentine scored four points and dished out two assists in 11 minutes.Hoiberg admitted the injury may stunt Valentines progression for a little bit as the Bulls continue training camp.It is a setback, Hoiberg said. Hopefully well get himm back for the last couple exhibition games.dddddddddddd I want to play him with the ball in his hands as a primary ball-handler. Weve been doing that with him some in practice and hes done a nice job with it.Hes one of our better instinctive passers and so well miss that element. From a game standpoint, for rookies in this league thats where you start getting comfortable. So hope to get him back as soon as possible but were not going to rush it. Once we get him back, we want to have him back for the rest of the season.Valentine, the 14th pick in the 2016 draft, said he suffered the same injury during his college career at Michigan State. He tried to keep a positive outlook on his new reality.Im going to lose a little bit of time, Valentine said. But the good thing about it is all the great equipment and trainers and staff we have. Theyll get me back as quickly as I can.If I have to play catch-up, Ill just have to play catch-up. But it is what it is now, theres no point in stressing over it. Just got to take the steps I need to do to get healthy. ' ' '