The fight started well for Teerachai, who used his size, youth and jab brilliantly to keep Matthysse at range and out box the Argentinian, who looked old and tired from the opening round. The Thai kept the fight at long range with his jab whilst Mathhysse was forced to try and walk in and cut the distance, which was a real problem.
For the first 7 rounds it seemed like Matthysse was really struggling to cut the distance. He looked like a man who was out of ideas and frustrated by the size of the Thai who used his reach at range and held up close. The style of the Thai made Matthysse look terrible and made the crowd boo the fight, showing that they were just as frustrated as the Argentinian.
With Teerachai looking comfortable, and in the lead,it was clear Matthysse would need to find something, and he did saw in round 8. He dropped the Thai hard with a right jand, taking advantage of the fact Teerachai's chin was less than concrete. To his credit Teerachai got up but was dropped again only moments later as Matthysse landed a hard jab and a glancing right hand to put Teerachai out for the count.
The loss ends Teerachai's long unbeaten run, and given his style he won't be invited back to US soil any time soon, but the performance really showed how far Matthysse has slipped and it may well be time for the Argentinian to retire rather than risk taking more punishment in the ring.
Sadly neither man came out looking great and it's a bout where really there were no out and out winners. HBO didn't get an enjoyable fight, fans booed, Teerachai lost and Matthysse looked a shot fighter.