Japanese Grand Prix Venue: Suzuka Dates: 4-6 April Race start: 06:00 BST on Sunday Coverage: Live radio commentary of practice and qualifying on BBC 5 Sports Extra, race live on BBC Radio 5 Live. Live text updates on the BBC Sport website and app Alpine's Jack Doohan suffered a high-speed crash as Friday practice at the Japanese Grand Prix was punctuated by four red-flag stoppages. The Australian was uninjured in the crash, which initial impressions suggested was caused by the DRS overtaking aid still being open as he entered the 160mph first corner. Alpine have not commented on the cause of the incident, saying they are "assessing" it. Doohan's was the first of four incidents that led to the session being stopped, two of which were for the grass catching fire beside the track. McLaren's Oscar Piastri ended up fastest from team-mate Lando Norris. The second stoppage was caused when Aston Martin's Fernando Alonso spun off and became beached in...