Overpair vs Overbet en River

Buenas, el rival tiene un Af: 2

PokerStars - €0.10 NL - Holdem - 8 players

UTG: 103.3 BB (VPIP: 31.15, PFR: 5.21, 3Bet Preflop: 1.96, Hands: 369)

UTG+1: 96.5 BB (VPIP: 38.89, PFR: 9.26, 3Bet Preflop: 9.52, Hands: 54)

MP: 145.6 BB (VPIP: 15.05, PFR: 11.42, 3Bet Preflop: 5.06, Hands: 9,505)

MP+1: 126.5 BB (VPIP: 12.20, PFR: 6.81, 3Bet Preflop: 1.90, Hands: 5,010)

Hero (CO): 107.8 BB

BTN: 68.8 BB (VPIP: 18.69, PFR: 12.94, 3Bet Preflop: 4.14, Hands: 12,793)

SB: 149.7 BB[/b] (VPIP: 19.16, PFR: 9.58, 3Bet Preflop: 4.48, Hands: 768)

BB: 104.7 BB (VPIP: 12.92, PFR: 9.61, 3Bet Preflop: 3.23, Hands: 5,984)

Pre Flop😒pot: 1.5 BB) Hero has A:club: A:heart:

UTG calls 1 BB, fold, fold, fold, Hero raises to 5 BB, fold, SB calls 4.5 BB, fold, fold

Flop😒12 BB, 2 players) J:spade: 7DIAMONd Q:heart:

SB bets 5.7 BB, Hero calls 5.7 BB

Turn😒23.4 BB, 2 players) 4:club:

SB bets 16 BB, Hero calls 16 BB

River😒55.4 BB, 2 players) 5:spade:

SB bets 52.5 BB, Hero ?