️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Sirotkin participated in tests that took place in Bahrain on 8 April, where he completed 75 laps and covered a distance of over 300 kilometres, recording the 8th fastest time.<unk> Sirotkin participated in tests that took place in Bahrain on 8 April, where he completed 75 laps and covered a distance of over 300 kilometres, recording the 8th fastest time.<unk> Sirotkin participated in tests that took place in Bahrain on 8 April, where he completed 75 laps and covered a distance of over 300 kilometres, recording the 8th fastest time. ️<unk>️<unk>️<unk> Sirotkin made his race weekend debut in free practice at
2014 Russian Grand Prix where he recorded the 17th fastest time, some four-tenths of a second slower than his more experienced teammate Adrian Sutil. Sirotkin was unable to secure a contract with Sauber for 2015 because the team completely changed its structure and selected drivers with good financing.<unk> Sirotkin was unable to secure a contract with Sauber for 2015 because the team completely changed its structure and selected drivers with good financing.