Paul Scholes wanted Ole Gunnar Solskjaer to replace Manchester United goalkeeper David de Gea with Dean Henderson earlier in the season - but the Red Devils boss disagreed and kept faith with the Spaniard.
There is real competition for the number one shirt brewing at Old Trafford, with De Gea and Henderson both solid top-flight keepers.
De Gea was United's number one all the way back in 2013 when Sir Alex Ferguson in charge, and has been one of the Red Devils' best players over the past decade.
But the Spaniard hasn't been his usual brilliant self over the past couple of years, while Henderson has been knocking louder and louder on Solskjaer's door each season.
Henderson was selected to start between the sticks for Man United on Thursday night, as the Red Devils played host to AC Milan.
And Scholes pointed out it's a big opportunity for the keeper to make the number one spot his own.
"That depends on what Henderson does now. This is his big opportunity to cement his place in the team," said Scholes on BT Sport.
"I love David. He's been a sensational goalkeeper for this club for many years. But after the Everton game, three or four weeks ago, when he conceded a couple of goals he probably shouldn't have I thought it was time for Henderson to come in.
"Ole obviously disagreed and kept faith with David and I still thought in them games he looked a little suspect.
"I actually watching that game on Sunday, I know City didn't create a lot, which is a great credit to the defence, I felt safe with him. I felt if they get a chance I think he'll save it.
"He just felt comfortable, nice and relaxed, nice and composed. Didn't want to get involved when he didn't have to. This is a big chance for him, not just for United. If he does well in his next few games he's No.1 for United and No.1 for England.
"The next few weeks are pivotal. They will probably decide David's future. He won't sit around and be a No.2. Neither of them can do."
