Hansi Flick has 'warned' Marcus Rashford that he needs to improve in one key area after making his Barcelona debut following his move from Manchester United. Rashford has joined Barca from Man United on a season-long loan, with the Catalan giants having the option to make the transfer a permanent deal for £30 million.

Marcus Rashford has completed his season-long loan move to Barcelona, which, SSN understands, includes an option to buy for £26m; Rashford fell out of favour under Ruben Amorim and spent the second half of last season on loan at Aston Villa;