Raikkonen fastest as water leak sidelines Alonso

F1 Test, Barcelona, Circuit de Catalunya

Kimi Raikkonen set the fastest time of the morning session, and probably of the day, as he completed a number of quick laps on Pirelli's ultra soft tyres just before the lunch break. The Finn could likely go even faster, but got held up by Kvyat on his second lap.

The morning session saw lots of running once again, with Hamilton recording another impressive amount of laps, ending his day at 99 laps before handing over the steering wheel to Nico Rosberg.

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The only real team that encountered a lot of unexpected pit time was McLaren Honda, as the team found a water leak on lap 3, forcing him to return to the pits and wait for the engineers to fix the problem. On Wednesday, Jenson Button saw his day end early as well, then due to a hydraulic leak that needed to be repaired.