Mercedes may struggle with overheating during the Saudi Arabian Grand Prix this weekend, Sky Sports F1 commentator David Croft has warned. The Silver Arrows sit third in the constructors’ standings after amassing 16 points in Saturday’s season-opening Bahrain Grand Prix. But Croft says the cooling issues they experienced during the race in Sakhir are a bad sign heading into the second leg of the double-header. Both Lewis Hamilton and George Russell were told to lift off the throttle and coast into the corners more than usual. Croft sends warning to Mercedes ahead of Saudi Arabian GPIt was actu…