Why was Gareth Bale wearing black tape on his quad in the games against inter-milan earlier this year?

I was watching youtube videos of Bale vs. Maicon, and noticed he had what appears to be black tape running the length of his thigh. What's that about?Why was Gareth Bale wearing black tape on his quad in the games against inter-milan earlier this year?I think they protect the hamstrings but keeping them warmWhy was Gareth Bale wearing black tape on his quad in the games against inter-milan earlier this year?I think he is in depression.....HA HA!!!