Arsenal host Rennes at the Emirates Stadium on Thursday needing to overturn a two-goal deficit if they are to advance in the UEFA Europa League. The Gunners slipped to a 3-1 defeat in the first leg of their last-16 tie.
Chelsea eased to a 3-0 win at home to Dynamo Kiev last time out, so they'll take that lead with them to Ukraine, and Napoli are in the same position against Red Bull Salzburg.
Sevilla's tie with Slavia Prague is finely balanced after they drew 2-2 in Spain, as is Inter Milan's clash with Eintracht Frankfurt following their stalemate in Germany.