Jurgen Klopp said he cannot keep all of his Liverpool squad happy, but he does not believe that will be a problem for the Premier League leaders.
Liverpool moved back to the top of the pile on Sunday, with Xherdan Shaqiri's double securing a 3-1 win over Manchester United.
Alisson's error had allowed Jesse Lingard to square things up after Sadio Mane's opener, but Shaqiri's introduction in the 70th minute paved the way for Liverpool to make their dominance count.
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And although Klopp was delighted with Shaqiri's impact from the bench, he said that players must prove their worth if they are to keep a place in his XI.