The Belgium midfielder was heavily linked with Man Utd a few years back, but eventually left boyhood club Standard Lierge for Porto in 2011. He moved back to his homeland last summer, joining Anderlecht for €6m, and on Saturday returned to his former club for the first time.
Where this was waiting for him.
As you can probably imagine he was getting a fair bit of verbal abuse too, so in the 56th minute decided to retaliate...
Straight in to the home support! And a red card for his efforts.
It didn't go down well.
Standard went on to win 2-0 and Defour, if he's got any sense, will give this one a miss next season.