He lost 8-6 in the 3rd set tiebreak, had one match point on Mathieu's serve.
He made his first return at 44* and won the point, but followed it up with a double fault. Missed a backhand wide after a longish rally on his MP, and missed a forehand after a big serve/decent return on PHMs MP.
He would have gained so much confidence with a win here, but instead loses another match having had MP. Such a shame.