Postpublished at 12:36 British Summer Time 4 October 2014
Former Wales international John Hartson
Football Focus
"When he was manager of Wales, John Toshack used to tell the senior players to watch the U21s, it was great for the young players, it gave them the motivation to get into that senior side. The prize is the senior side. When I was 19, 20, scoring for Arsenal, I wanted to be in the senior side. It's great for players like Luke Shaw if he can get two games in the U21s, fitness-wise too. But it is hard to come back into it once you've had a taste of the senior side."