LONDON (Reuters) -Newly-crowned Bundesliga champions Bayer Leverkusen reached the Europa League semi-finals but almost lost their season-long unbeaten record as they struck late to draw 1-1 away at West Ham United for a 3-1 aggregate victory on Thursday.

Xavi Alonso's side trailed to Michail Antonio's early header and were far below their usual high standards in the first half as the dominant hosts carved out several more chances.