50-100nl at commerce

I raise AK from button to $400, sb folds and Rivero calls in BB

flop is 3 7 9

Rivero checks and calls $700

turn 4
check check

river Q
Rivero shoves $120,000 ($50k cash and $70k pink) showing no sign of weakness and I tank for 5 min and call. Rivero shows T8 and I scoop the pot with A high.