Which Man Utd player does Xavi regret not playing with?
It's hard to imagine how a legendary footballer who has won almost all of highest accolades in football like Xavi Hernandez having any regrets about his career.
After all, he was the heartbeat of Spain's tiki-taka playing style that captured the World Cup in 2010 as well as consecutive Euro title in 2008 and 2012.
Yet, the Barcelona midfield maestro, who just called time on his international playing career, does have one regret - not having the chance to play alongside Manchester United legend Paul Scholes.
While the prospect of both playmakers lining up in the same team would have been the stuff of dreams for most football fans, both men's loyalty to their clubs meant it was never going to happen.
"When I think about all I have won with Spain and Barcelona and all they great players I have played with - it is impossible for me to have any regrets," said the 34-year-old.
"Maybe one small regret is that I never got to play with Paul - but I was never going to leave Barcelona and he was never going to leave Manchester United."
Perhaps it's not surprising considering Xavi once spoke glowingly about fellow Scholes, who retired in 2013, in an interview in 2011.
Then, Xavi said: "Paul Scholes! A role model. For me – and I really mean this – he's the best central midfielder I've seen in the last 15, 20 years."
Sources: ESPN.co.uk, The Guardian