Alexis Sanchez salvaged a point for Arsenal from their limp Champions League opener at Paris St-Germain.
Edinson Cavani glanced PSG ahead after 42 seconds and should have had a hat-trick before half-time, firing wide after rounding David Ospina before slipping to fluff a simple finish.
Sanchez rifled in the rebound from Arsenal’s first shot on target.Alex Iwobi might have had a late Arsenal winner before Olivier Giroud and PSG’s Marco Verratti were sent off.
Lionel Messi scored his sixth Champions League hat-trick as rampant Barcelona inflicted on Celtic their heaviest ever European defeat.The Argentina forward cracked in an early first goal in the Group C match.
Celtic’s Moussa Dembele had a penalty saved before Messi poked in his second.In the second half, Neymar’s free-kick sailed into the net, Andres Iniesta volleyed a fourth, Messi slid home the fifth and Luis Suarez scored with a volley and then a side-footed finish.
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Bayern Munich began their bid for a sixth European Cup title by hammering Champions League debutants Rostov 5-0.Robert Lewandowski’s penalty gave the German champions the lead before Thomas Muller swept home on his 27th birthday.
Joshua Kimmich stabbed in and quickly added a header as Bayern boss Carlo Ancelotti became the first man to manage seven clubs in the competition.Juan Bernat fired in from 10 yards for 5-0. Atletico Madrid won 1-0 with a first half Saul Niguez goal at PSV in Group D’s other game.