MP3 has just joined the table so no reads. SB has been pretty aggressive. Are we playing this differently?

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

saw flop|saw showdown

MP3 (t1680)
CO (t940)
Button (t900)
SB (t1515)
Hero (t2190)
UTG (t2070)
UTG+1 (t1250)
MP1 (t2110)
MP2 (t905)

Preflop: Hero is BB with 7, 7.
4 folds, MP3 raises to t120, 2 folds, SB calls t105, Hero calls t90.

Flop: (t360) 7, 9, K (3 players)
SB bets t570, Hero raises to t2070, MP3 folds, SB calls t825 (All-In).

Turn: (t3825) 3 (2 players, 1 all-in)

River: (t3825) 9 (2 players, 1 all-in)

Final Pot: t3825

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Standard play imo

bet sizes aren't what you should be afraid of. actions tell more about the strength of hands. i would be more inclined to fold if you bet 30, got raised to 90, reraised to 250, then he went allin than him just betting 570 on the flop