CO has just lost two big pots, cutting his stack from 800 to about 230. He lost with two pair v set, and probably an overvalued top pair. He's been pretty aggressive when checked to.
Straddled pot, CO limps to 10, we have A
K
in the SB and raise to 60. BB and Straddle folds, CO calls.
Flop 7
2
3
Pot 135
What's our line and why?