In the understatement of the century, the Guardian reports:
The pair have had a troubled relationship ever since Keita’s time at Barcelona, when he accused Pepe of racism after a Spanish Supercup clásico in 2011.
Keita appears to still hold a grudge against the Real defender. [Note: Really? Are we sure about that?] He saw him coming in the pre-match handshakes and blatantly refused to follow suit and threw a water bottle which narrowly missed the Portugal international.
There were conflicting reports all over twitter and tumblr yesterday. So here's the footage.