The center-right is set to remain the biggest group in the EU legislature after elections in May that should also show a surge in seats for the far-right, a survey by the European Parliament showed on Monday.
Spain's Prime Minister Pedro Sánchez has called a snap general election for 28 April, after Catalan nationalist MPs withdrew support for the Socialist government's budget.
British Prime Minister Theresa May could face a defeat in parliament on Thursday over her plan to renegotiate the Brexit deal, undermining her pledge to the European Union that, with changes, she can get the agreement approved.
Former United winger Di Maria, booed from the outset by sections of the crowd, had the last laugh when he collected a fine pass from Marquinhos and set up Mbappe for the second goal.
A dozen leaders of Catalonia's failed 2017 independence bid have gone on trial in Madrid, facing charges including rebellion and sedition.
Officials had told Reuters over the past few days that an early election was likely but that, while April was a possibility, the date had not been set yet.
MPs may not be given a vote on a revised version of Theresa May's Brexit deal this month, a minister has said.