River spot with 55, check behind or bet?

[wandigo]

Very early in the 50k on stars, no reads on villian.

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (9 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

UTG+1 (t3030)
MP1 (t3430)
MP2 (t2970)
MP3 (t2970)
CO (t3000)
Button (t2970)
SB (t2410)
Hero (t2970)
UTG (t3220)

Preflop: Hero is BB with , .
2 folds, MP1 raises to t60, 4 folds, SB calls t50, Hero calls t40.

Flop: (t180) , , (3 players)
SB checks, Hero checks, MP1 checks.

Turn: (t180) (3 players)
SB bets t140, Hero calls t140, MP1 folds.

River: (t460) (2 players)
SB checks, Hero ???

Final Pot: t460

He seems pretty weak after the river, do you think I can win by checking or are hands like 77/88 in his range that I could maybe fold out?