NL50 ISO & turned top set, but flush hit. River facing donk AI

Posted 9 years ago

Blinds: $0.25/$0.50 (8 Players) CO: $33.14
BN: $50.00
SB: $53.14
BB: $24.48
UTG: $90.30
UTG+1: $50.75 (Hero)
MP: $52.85
MP+1: $50.00

Villain REGFISH or passive fish. 27/4 after 56hh. AGG 50(12)/38(8)/50(4). WTSD 25(12)

Preflop ($0.75) Hero is UTG+1 with T T

UTG folds, Hero raises to $1.50, 5 folds, BB calls $1.00

Flop ($3.25) 2 5 9

BB checks, Hero bets $2.50, BB calls $2.50

Turn ($8.25) 2 5 9 T

BB checks, Hero bets $5.50, BB calls $5.50

Turn for value.

River ($19.25) 2 5 9 T A

BB bets $14.98 and is all in, Hero calls $14.98

River donk seems weird, I think fish tend to X/R most flushes on turn

I'm not sure if I could check-back turned top set (I think I can't)? What's river play? Arguments for calling/folding?