Euro Watch: PSG shocked by Rennes, Dortmund close gap to Bayern Munich

Meanwhile, in Italy, AC Milan needed a late goal from Luka Modric to defeat lowly Pisa 2-1

Serhou Guirassy scored twice as Borussia Dortmund closed to within three points of Bundesliga leaders Bayern Munich, beating Mainz 4-0. Martin Meissner/AP

Paris St Germain's Ligue 1 title hopes suffered a blow with a 3-1 defeat by managerless Rennes at Roazhon Park.

Luis Enrique's side moved back into top spot ahead of Lens last weekend with a 5-0 hammering of Marseille, their seventh success in a row in the league, but they were swiftly brought back down to earth in Brittany.

Mousa Al-Tamari gave Rennes a half-time lead and, although Ousmane Dembele pulled one back straight after Esteban Lepaul had made it two midway through the second half, it was the home side who found another goal through Breel Embolo.

It was a dream first outing as interim head coach for Sebastien Tambouret, who was given the reins after Habib Beye was sacked on Monday following a run of four defeats in a row.

Monaco boosted their hopes of European football with a 3-1 victory over struggling Nantes.

All Monaco's goals came in five first-half minutes, with Simon Adingra scoring twice and Denis Zakaria once.

Fabien Centonze pulled one back for Nantes just before the break but they could not make a second-half breakthrough despite Aleksandr Golovin's red card.

Serhou Guirassy scored twice as Borussia Dortmund closed to within three points of Bundesliga leaders Bayern Munich, beating Mainz 4-0.

Maximilian Beier also scored for Dortmund, while the fourth was an own goal from Dominik Kohr.

AC Milan needed a late goal from Luka Modric to defeat lowly Pisa 2-1.

Ruben Loftus-Cheek opened the scoring late in the first half but Felipe Loyola equalised with 19 minutes left, while Milan also had Adrien Rabiot sent off.