Rocks downfall is imminent.
Rocks will cry and curse everyone when god valley happens while all his crew turn his back on him when Rodger is delivering a beating of a lifetime to him.

Remember WB didn't wanted Oden in his crew initially because he didn't follow orders which was the downfall of his previous crew.

Shiki already mentioned that nobody cares about Rocks if he dies.

Only a matter of time, when Rocks is face down on the ground, crying like a bitch. Yelling Haralds name one last time to come save him. While Chad and Marine Hero Garp finishes him off for good.