Chelsea and QPR players clashed at the end of the R's shock 1-0 win on Sunday, it has been revealed.
The Daily Mail says Chelsea and QPR players were involved in a furious tunnel bust-up after Sunday's ill-tempered clash.
A dressing-room source said: "There was a lot of testosterone flying around in the tunnel.
"It was not like one or two of them were getting involved, everyone was.
"It looked like it was all going to kick off at one point before they were all ushered into their dressing rooms.
"QPR players were not about to be intimated by Chelsea players and were all for standing their ground in the tunnel.
"Thankfully, it was more handbags than anything else but it could have turned out to be a lot more."