"I didn't like the way he played," De Zerbi told reporters when asked why he subbed Greenwood. "If we want to compete for the title we have to push in all matches. He's a good guy but I expected a lot more from him this evening."
De Zerbi went on to talk more generally about the team in comments to broadcaster DAZN, but it highlighted further why he didn't want Greenwood on the pitch in the second half.
"At 11v11, we weren't up to par," he said. "We need to make more runs, sacrifices, I told the players. We got a lot of red cards. I don't want to know if it was fair or not. We weren't able to do like in Lyon. We didn't play with courage like my team should play. We had to play with courage, that's why it was more difficult. We're going to have to keep working and do more. We need to have more personality and play better. We weren't able to be competitive. We had prepared well to play with courage. If we don't play with courage, we can't wear this jersey."