Walker reckons he will be giving defenders nightmares at the World Cup if England can book their finals place by beating Poland tomorrow night.
The Spurs defender said: "He's really confident, as you saw against Montenegro. He's not the nervous type. He just wants to get at players.
"As a full-back you don't want a right midfielder who is left footed running at you. It's a dreadful thing.
"He can go both sides and he's quite confident, as you saw with his goal, to go with either foot. I actually told him at half-time he was going to score. I just sensed something.
"He was on fire and getting at people. I just didn't think it was going to be such a goal - and with his right foot as well!
"I just hope it's a stepping stone for him to go on and showcase his talent. I'm made up for him. When I found out he was starting I think I was more excited than he was.
"It's just because I know what he can do, I play at club level with him. I train with him and he's a nightmare. We've had some good wingers at Tottenham - Gareth Bale, Aaron Lennon. We just seem to breed wingers.
"Andros sleeps, eats and breathes football and I pray to God that this is just a stepping block for him to go on and do big things.
"He's got tough competition in the team. He's not just walked into the team and has had to bide his time.
"But I hope he keeps putting in performances like that and we get to where we want to be in the summer."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball