Villain (UTG+1) is new to me (<25 hands).

Preflop: Hero is MP1 with K, A.
1 fold, UTG+1 raises, UTG+2 calls, Hero 3-bets, 3 folds, Button calls, 2 folds, UTG+1 caps, UTG+2 calls, Hero calls, Button calls.

Flop: (17.50 SB) 9, A, 2 (4 players)
UTG+1 bets, UTG+2 folds, Hero calls, Button calls.

Turn: (10.25 BB) 2 (3 players)
UTG+1 checks, [color=#CC3333]Hero???

So I've hit my top pair, but...