They made short work of relegation-threatened Lorient in Brittany despite making a host of changes, with captain Marquinhos, Achraf Hakimi and Vitinha among the players rested.

"We did our job. We were serious and we got all three points, despite making numerous changes," Luis Enrique said.

"As long as the school year is not finished we cannot get our final grade," he added when asked about the prospect of clinching the title with four games still to play.

"What is happening is exciting. We are close, but we still have a month of the season to go, with other things to accomplish.

"There are seven or eight matches left, and to get to the eighth we will need to remain fully focused," added the Spaniard in reference to the Champions League final at Wembley on June 1.

Dembele gave PSG the lead at the Stade du Moustoir on 19 minutes, collecting a Senny Mayulu pass and coming in from the right flank before sending a shot low into the bottom-left corner.

Nuno Mendes then cut the ball back for Mbappe to double their lead midway through the first half.

PSG were looking to extend their unbeaten run in Ligue 1 to 25 games going back to September and their only loss of the campaign so far, at home to Nice.

Lorient, in contrast, were aiming to avoid a fourth consecutive defeat and climb out of the automatic relegation places.

Mbappe produced a brilliant piece of skill to get away from Nathaniel Adjei on the touchline to the left of the box before squaring low for Dembele to tap in the third goal on the hour mark.

That took Dembele's tally of goals for the season to five, after he also netted in both legs of the Champions League quarter-final win against Barcelona.

Lorient pulled one back on 73 minutes when Benjamin Mendy crossed for Ivorian striker Mohamed Bamba to head in.

However, Mbappe completed the scoring for PSG in the 90th minute with a trademark strike across the goalkeeper from the left-hand side of the box.

That took Mbappe to 43 goals for the campaign in all competitions in 43 appearances, with 26 of his goals coming in Ligue 1.