To be fair, it sounds like he had a tough draw. According to Radio 5 this morning Tsonga, who is ranked 38th, was looking a top 10 player a couple of years ago but his last 2 seasons have been decimated by injury, so probably a false ranking in terms of his ability.
Murray had a really tough draw to be fair. His opponent will be in the top twenty by the end of this year. That said, Murray was stupid to get rid of Brad Gilbert as his coach.