Arsenal showed strength in depth in Lille win, but Gyökeres is a concern

LONDON -- If Arsenal 's starters don't get you, the finishers probably will. Lille were firmly in Tuesday's UEFA Champions League game for an hour or so and then a three-goal blitz in seven minutes settled things emphatically. There were similarities here to last weekend's 2-1 win in the Premier League over Leeds United . The visitors were the better side, but Arteta made a triple substitution shortly after Arsenal took the lead, and his team went on to win.