He said Racing were "a formidable bunch of players".
Lancaster joined Leinster in 2016, his first coaching role since resigning from the England job after a dismal performance in the 2015 World Cup.
"Just the power that Racing have in their squad and the depth of experience that they have as well".
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The previous record for an English Premier League points tally was 95, achieved by Chelsea in 2004-05. They worked from day one to the last one, training with us, in the locker room, training.
Racing, who were never behind until Nacewa's late penalty, replied with four penalties by stand-in halfback Teddy Iribaren after suffering a major setback before kick-off when former New Zealand superstar Dan Carter was ruled out injured.
Carter will be hoping to bow out with a winner's medal when he brings the curtain down on his European rugby adventure at the Bilbao final.
He accepted full responsibility for the team's performances after almost four years in charge, and travelled the world to broaden his rugby experience before joining Leinster two years ago.
Carter is likely to start on the bench on Saturday, Springbok Pat Lambie having been given the nod for the No 10 shirt.
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Bruno Le Maire said Friday on Europe-1 radio that Europe should not accept that the U.S.is the "world's economic policeman". German Chancellor Angela Merkel spoke to Russian President Vladimir Putin about how to preserve the agreement today.
Expected to be chose to by performance in this year's Champions Cup final, Scott Fardy, Tadhg Furlong and Johnny Sexton are the three Leinster players up for the award.
Leinster are unbeaten in European competition this season, with eight wins from eight including an impressive 30-19 quarter-final victory over 2017 winners Saracens and a 38-16 defeat of Scarlets in the last four. "They deserved to win", Racing coach Laurent Travers said. In the away game in France we were quite comfortable for large parts of it, but they scored three tries in the blink of an eye and it changed the nature of the game.
Fly-half Johnny Sexton can be expected to keep the scoreboard moving in their favour by nailing his kicks and Leinster are fancied to cover a five-point second-half handicap.
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He said Israel's "baseless pretexts amount to a blatant violation of Syria's sovereignty and goes against all global conventions". An airstrike on a military base in Syria last month, which Iran and Russian Federation blamed on Israel, killed seven Iranians.