Alejandro Garnacho burned bridges at Manchester United this summer as he completed a permanent move to Chelsea. Last season, Alejandro Garnacho criticised Ruben Amorim moments after the Europa League final defeat to Tottenham. After being put in Amorim’s ‘bomb squad’ over the summer, Garnacho joined Chelsea for £40m, but his start in London has been underwhelming. Photo by Chelsea Football Club/Chelsea FC via Getty ImagesAlejandro Garnacho sent Argentina warning by Lionel ScaloniOn his return to Old Trafford, Garnacho was booed by United fans, and he failed to play a single minute as Chelsea lost 2-1 to United. READ MORE: What Alejandro Garnacho was spotted doing before marching down Old Trafford tunnel, two key Man Utd stars involvedAt United, Garnacho was a regular starter with 58 appearances in all competitions last season.