Jordi Cruyff says injuries wrecked his time at Manchester United.
The former winger is now in charge of China's Chongqing Lifan.
He recalled to BBC Sport: "I fell from one injury to another and I could never really get a run and show the manager he could count on me. When Ryan Giggs was injured, I was always injured - and that's my fault. As a coach, you want players who are ready when you need them. I see that now myself.
"Training-wise, I was always on the level that was necessary, but I didn't play a lot and I probably didn't bring what I could do in training to the games.
"If you know you're going to play 30 minutes every three weeks you make a decision - do I want to stand out by scoring a goal? You can see that in a few games - there was a time when I was just trying to score goals, and others when I was trying to participate in the game and enjoy it.
"But with the injuries, I could never catch that train and have a stable season. When I look back at that team - Giggs, David Beckham, Paul Scholes, Roy Keane, Eric Cantona, and then the likes of Dwight Yorke, Teddy Sheringham and Andrew Cole - not to have played much is nothing to be ashamed of."
