The footballer joined Sandford as her Saturdays bandmate tied the knot with Ben Foden this weekend, but apparently had his mood "spoiled" by a drunken reference to Terry's alleged affair with his ex-girlfriend Vanessa Perroncel while they were both at Chelsea.
"One of the guests had a few too many and started singing Chelsea songs," a wedding source told The Sun.
"It then developed into 'There's Only One John Terry' sung at the top of his voice towards Wayne. Wayne's a mild-mannered bloke but there was only so much he could take.
"He squared up to the punter. There was a bit of fisticuffs and they were pulled apart but it spoiled the mood for Wayne."
Sandford served as a bridesmaid to Healy along with other Saturdays members Rochelle Wiseman, Mollie King and Vanessa White.
The 23-year-old admitted back in May that she is feeling pressure to marry Bridge.