MTT, Blinds 300/150 Ante 50, 9 handed, my stack 12200, i am Button.
All pass to me, i raise 900 with

, SB pass BB call, his stack 13500.
Flop

BB checks i bet 1500 he calls, Turn

BB bets 2600
He has recently been moved to my table and i haven't much info on him.
So what would you put him on and how would you play it from here.
Thanks
NEVES.