Real Madrid head coach Carlo Ancelotti ruled out the possibility of ever taking charge of LaLiga rivals Barcelona.
Ronald Koeman is under pressure at embattled giants Barca and Madrid great Guti said he would be open to coaching at Camp Nou.
Guti emerged from the youth system of boyhood club Madrid in 1995, going on to captain Los Blancos and win five LaLiga titles and three Champions League crowns among other honours before leaving in 2010.
The 44-year-old former Spain international midfielder returned to coach Madrid's youth team between 2013 and 2018.
But Ancelotti – in his second spell in the Spanish capital – has no plans to coach Barca, despite Guti's revelation.
"With all due respect to a great club like Barcelona, I can't," Ancelotti told reporters ahead of league-leading Madrid's trip to Espanyol on Sunday.
"I can't go against my history; my history says that I have coached Real Madrid, I am the Real Madrid coach.
"I can't go against this. With all due respect for a great club."
Madrid have won 20 of their last 23 games against Espanyol in LaLiga (D2 L1), scoring 61 goals during this time (2.6 per match) and keeping a clean sheet in 17 of them (eight goals conceded overall).
Los Blancos have beaten Espanyol in nine of their 11 visits to the RCDE Stadium in LaLiga (D1 L1) – more than any other visiting side at the ground in the competition.
Madrid have not lost any of their last 18 away matches in LaLiga (W12 D6), and should they avoid defeat to Espanyol, the club will record their longest unbeaten run away from home in the competition's history (19).
Ancelotti has not lost any of his last 17 matches in LaLiga (W14 D3), and could equal his best run as Madrid coach in the competition (18 between October 2013 and March 2014 - W15 D3).