"I put a lot of trust into him and he puts a lot of trust into me.
"It's a bit of a funny relationship but he's a great guy and I couldn't think of anyone better to play with."
Alli admits it has been "a bit of a crazy start" to the season for Dier and himself, and was quick to thank Spurs boss Mauricio Pochettino for giving them a chance at White Hart Lane.
"I think it's a great thing for the manager, you know? He puts a lot of trust into youngsters and I think it shows," he said.
"We're all playing well at the minute at Tottenham and we're just going to keep focused and keep trying to improve."