Paul Pogba's decision to sport a blue hairstyle for Manchester United's trip to Manchester City was questioned Gary Neville.
City manager Pep Guardiola claimed the France midfielder was offered to City by his agent Mino Raiola in January.
Pogba tweeted, "Say what?" soon after the comments were published on Friday.
On Saturday, he turned up for the clash at the Etihad Stadium, where City will secure the Premier League title with victory, with an eye-catching blue haircut - which he dyed last month.
Neville, though, was less than impressed and said on Sky Sports: "I like him, I think he's a good player, but he doesn't help himself.
"If you are a wise individual, you don't attract attention when things aren't going your way. Pogba doesn't work like that. He's got a big job to do, he's got to prove he's serious about his football.
"Coming here with blue hair today, win it's fine, lose and that's going to get mentioned forevermore. It's ridiculous."