Robbie Neilson's return to Hearts as 'bizarre'. Neilson left Dundee United on Sunday to complete a return to Tynecastle despite getting promoted to the Premiership while Hearts were relegated.And Walker can't understand why he'd give up another crack at the top flight rather than heading back to the second tier, despite his love for the club.With the Championship set to play a 27-game season starting from October, Walker believes the risk of going to a league which might even struggle to compete that campaign is a dangerous game to play.