The Hammers defender could find himself facing up to his half brother in the crunch match at the Boleyn.
Yannick Sagbo joined the Tigers from Evian last summer and although he made the game as a debut, Guy was confined to the bench for 90 minutes.
So tonight could be a big night for them both if they line up against each other and Guy said: “He won’t be answering the phone to me!
“It’s going to be strange, it’s just the second time that we’ve had a match against each other after the away game earlier in the season.
“I’m happy for him and the season he’s had, but on Wednesday the most important thing is that we get the three points.”