A hand played by a friend of mine. No reads. Do you do anything differently? And what now?
What changes when the river is the 2

?
Party Poker $120 USD Buy-in No Limit Hold'em Tournament - t20/t40 Blinds - 10 players
BTN: t4430 110.75 BBs
SB: t1695 42.38 BBs
Hero (BB): t2910 72.75 BBs
UTG: t2870 71.75 BBs
UTG+1: t2970 74.25 BBs
UTG+2: t2970 74.25 BBs
MP1: t2670 66.75 BBs
MP2: t2940 73.50 BBs
MP3: t3545 88.62 BBs
CO: t3000 75 BBs
Pre Flop: (t60) Hero is BB with Q

J
3 folds,
MP1 raises to t80,
3 folds, BTN calls t80,
1 fold, Hero calls t40
Flop: (t260) 4

9

J
(3 players)
Hero checks, MP1 checks,
BTN bets t160,
Hero raises to t440, MP1 folds, BTN calls t280
Turn: (t1140) 9
(2 players)
Hero bets t590, BTN calls t590
River: (t2320) K
(2 players)
Hero has 1800 left