Harry Redknapp was overjoyed at Andros Townsend's stellar England debut and believes the Tottenham winger is capable of anything.
Townsend was influential in England's 4-1 win over Montenegro on Friday night which means victory over Poland on Tuesday evening at Wembley would secure a place at next summer's World Cup finals in Brazil.
Redknapp worked with the 22-year-old at Spurs before helping him to flourish in the Barclays Premier League during a spell at QPR last term, one of nine loan stays for the winger.
The 66-year-old QPR boss believes Townsend is the closest player England have to Holland winger Arjen Robben.
"If he can keep improving, I think the sky's the limit," Redknapp told Press Association Sport.
"It's up to him now. He's got a great chance. Andros is not Arjen Robben; he's not in his class at the moment, but he's very similar.
"He plays on that right side, likes to come in on his left foot when he can, he runs with the ball, he beats defenders, he tests the full-back."
What Townsend was lacking, until his spell at QPR, was sustaining strong performances.
"We loaned him out an awful lot because he couldn't get that consistency," Redknapp said.
"He'd have a great spell for four or five games with a club and then his form tended to dip a bit.