Train Spotted

On the way back from a game of tennis I was standing next to the train doors watching the world fly-by. At a large station many people got off. I spotted one young boy who looked familiar; when he spotted me he stopped, stared, looked surprised and then walked over to my still open train door.

「ダレン?」 *I nod*
「分かる?」 *He points to himself. I nod again*
「テニス」 I say
「テニス?…う け る…う け る」

My understanding of うける is that of ‘funny’ (i.e. you crack me up!). What was the exact meaning in this situation? Did I mishear him? Whatever the word was, he said it numerous times with a look of disbelief on his face – I guess he thought he’d never meet me again.