Florentin Pogba has said he will foul brother Paul Pogba if that is what it takes to help St Etienne beat Manchester United in their Europa League tie.
Florentin, 26, will meet Paul, 23, when the Ligue 1 travel to Old Trafford on Thursday for the first leg of their round-of-32 match.
"We're both determined players," Florentin, whose twin brother Mathias plays for Sparta Rotterdam, told Telefoot. "Him and me. If he's on a run, and I have to tackle him, I'll tackle him. I'm not going to knock him out. But if I have to foul him, I'll do it."
In December, St Etienne sporting director Dominique Rocheteau hailed the meeting of Florentin Pogba and his brother Paul Pogba as "the beautiful story" of the side's meeting with United.
St Etienne are currently fifth in the Ligue 1 table after a 4-0 win over Lorient on Sunday, while United are sixth following their 2-0 victory over Watford on Saturday.