Following on from a thrilling set of quarter-final first-leg matches in the UEFA Europa League, the final four in the competition will be determined on Thursday in the return fixtures.
Arsenal will be seeking to finish the job against Napoli after a 2-0 win over the Serie A side left them in a strong position at the halfway point in the tie. Their Premier League rivals Chelsea are also in a commanding place, having won 1-0 against Slavia Prague away from home.
The standout fixture a week ago came between Benfica and Eintracht Frankfurt; after a 4-2 win for the former, more goals are expected in the second leg in Germany.