However, he did not finish out the club season, which has led to some fans questioning his priorities.
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"I needed to get this surgery since I been dragging the pain for about six months," stated the Chelsea midfielder.
"It was something I could avoid while constantly treating myself with injections and medications.
"But a few weeks ago, the pain started to get more and more intense, without any of this taking effect, and it was worse as I trained and played annoyingly, but I didn't want to stop being in the games I had."