Villain is 18/11/3 (3bet) over 63 hands. FTCB 100%, 3/3.

PokerStars - $0.10 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

Hero (UTG): $11.62
MP: $10.31
CO: $10.10
BTN: $10.15
SB: $39.15
BB: $31.08

SB posts SB $0.05, BB posts BB $0.10

Pre Flop: (pot: $0.15) Hero has A K

Hero raises to $0.35, MP calls $0.35, fold, fold, fold, fold

Flop: ($0.85, 2 players) 5 J A
Hero bets $0.60, MP calls $0.60

Turn: ($2.05, 2 players) 8
Hero bets $1.45, MP calls $1.45

River: ($4.95, 2 players) T
Hero checks, MP bets $2.74, Hero ???

Was unsure on the best line to take on river? I was going to b/f but I figured I'm probably only getting called here when I'm beat and the best I can hope for is AQ.

If I c/c, I think his betting range is a little wider than his calling range. He may bet with some weird gutters that he missed like KT/QT where he only has 3rd pair. The problem is I don't think he has many worse Ax hands here and if he does I certainly don't expect him to bet the river with them.