EAST RUTHERFORD, New Jersey, June ⁠16 (Reuters) - France manager Didier Deschamps admitted he delivered some home truths to ⁠his players at halftime during their 3-1 World Cup victory over Senegal ‌on Tuesday, after a lifeless opening 45 minutes.

France looked sleepy in the first half and were lucky not to go behind, with Senegal's Ismaila Sarr missing a great chance from close range to ​leave the match goalless at the break. But they ⁠revived in the second half, ⁠with Kylian Mbappe scoring twice.

Deschamps acknowledged they made a lot of mistakes in their ⁠Group ‌I opener in New Jersey, but he added that he was happy with the team set-up and the choices he made.

He flagged in particular ⁠his decision to bringon substitute Bradley Barcola, who scored France's ​second goal in the ‌82nd minute, and to change the position of Michael Olise into more ⁠of a playmaking ​role in the second half.

"I am frank with my players," Deschamps said. "We didn’t have the best first half, we could do better on many levels. I don’t shout but I ⁠do give a piece of my mind, they ​have to make the right decisions."

Deschamps praised Mbappe, whose two goals made him France's all-time leading scorer.