Villain was 13/9 through 45 hands, had only faced one 3bet previous and didn't fold to it. Also only faced one cbet on flop, again just called it. Neither hand went to showdown so no info to gain from it.

PokerStars No-Limit Hold'em, $0.02 BB (6 handed) - PokerStars Converter Tool from FlopTurnRiver.com

Button ($2.15)
SB ($0.73)
BB ($4.14)
UTG ($2.19)
MP ($2.78)
Hero (CO) ($2.06)

Preflop: Hero is CO with 9, 9
1 fold, MP bets $0.04, Hero raises to $0.12, 3 folds, MP calls $0.08

Flop: ($0.27) 9, 7, 8 (2 players)
MP checks, Hero bets $0.22, MP raises to $2.66 (All-In), Hero ???

I think this is hardly ever a bluff but what can he be holding? AK/AQs willing to shove with NFD? JT I don't think he is raising/calling a 3bet with.

Slim chance of 77/88??

Can I call this?