Irwin suggests man united teams juggling for trophy treble

I think there may be some confusion here!

Irwin is likely referring to Ryan Giggs, a former Manchester United player and current Wales national team manager. In 1999, Ryan Giggs suggested that Manchester United's team should juggle the ball during a training session to improve their ball control and teamwork.

However, I'm not aware of any instance where Irwin (presumably referring to Gary Neville, another former Manchester United player) suggested that the team should juggle for a trophy treble. Manchester United did win the treble in 1999, but I'm not aware of any specific instance where juggling was suggested as a way to achieve this feat.

If you have any more information or context about this, I'd be happy to help clarify!