Ah-ha - there! He thinks to himself as he finds what he's looking for. He lunges forward, one hand pointing both fingers in a jabbing motion right at one of the Boar's soft joints, where it's front right leg meets it's torso. Xandak hoped his analysis was correct and he could hit a nerve to temporarily disorient the creature. He didn't wait to find out, though, as he quickly followed up with two more punches at the Boar's underbelly.
Action 1: Move to boar
Action 2: Stunning Strike (Fortitude save, DC 10+Wis modifier+1/2 my character level, so that's either 11 or 12, depending on whether it rounds up or down). On a failed save, the boar is stunned for 1 round. Then Flurry of blows.
Action 3: Attack
Rolls
Stunning Strike - (1d20+5, 1d6+4)
1d20+5 : (11) + 5 = 16
1d6+4 : (2) + 4 = 6
Flurry of Blows - (1d20+5, 1d6+4)
1d20+5 : (2) + 5 = 7
1d6+4 : (3) + 4 = 7
Attack #2 - (1d20, 1d6+4)
1d20 : (12) = 12
1d6+4 : (5) + 4 = 9