The best replacement for mathieu is dodig.

The best alternatives to mathieu are rated as following:
★★★★★  dodig
★★★★★  claiborne
★★★★  davydenko
★★★★  mahut
★★★★  isner
★★★  granollers
★★★  morris claiborne
★★★  youzhny
★  andreev
★  patrick peterson
★  fognini
★  matthieu
★  isner rolland garros 2012

Your alternative for mathieu is not listed? Suggest!
Speaking about mathieu, one probably shouldn't forget about deion sanders.

Other search terms related to mathieu and their ratings are:
★★★★★ deion sanders
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mathieu
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