This is proof that he is back. If he can get Tsonga who was playing well and is an impressive player in his own right, then he can find a way to get past Nole. This should be a good match.
Fed has also begun to make good use of his new racket especially on his backhand. I noticed some very solid and fast winners coming off of deep attacks from Tsonga and I don't think he had this available to him in the past few years.