Merson wrote in his column for the Daily Star: "Craig Bellamy going back to Liverpool shocked me.
"He needs to play football, and he’s not going to get it at Liverpool. He’s going to get frustrated. In two or three months’ time I can see it all ending in tears.
"If someone gets injured, what a replacement he is to have on your books! But I don’t see him being happy waiting around for that to happen. He might not kick a ball there for three months!
"People say never go back to your old club. Usually I agree with them. But I can see it being effective. They are a big club, they are moving forward.
"It’s not an easy decision, though, because if he had gone to QPR, he would be starting every game this season – guaranteed."