Vinicius Junior scored the winner to give Real Madrid a 2-1 victory against Celta Vigo in a hard-fought encounter.
Madrid looked a shadow of their usual selves before a touch of brilliance from Kylian Mbappe gave them a 20th-minute lead. The opener came after Williot Swedberg had missed two glorious chances for the hosts, with Thibaut Courtois saving his second.
However, Celta were rewarded for their efforts in the second half with youngster Swedberg taking his opportunity for an emotional equaliser.
Madrid looked shaken by the equaliser but were calmed by the presence of substitute Luka Modric. With his second touch of the ball Modric unleashed Junior to calmly beat the goalkeeper in what would be the winner.
Celta would give their visitors one last fright with substitute Anastasios Douvikas meeting a cross inside the box at the death but putting his effort wide.
Carlo Ancelotti has work to do if Madrid are going to maintain their unbeaten record at home to Borussia Dortmund in midweek and then Barcelona in El Clasico next weekend.