The race for those Cup spots and the top four Premiership play-off positions is tight with second placed Harlequins and London Irish, in fourth, both on 61 points - five behind leaders Leicester who beat Saracens 16-13 yesterday. London Irish lost 21-17 at Northampton and Toby Booth, their director of rugby, will be hoping captain Bob Casey is ready to return from a bicep injury for the last game away at Worcester on Saturday.