Arsenal and Chelsea hope to be able to set up an all-Premier League Europa League final, but both teams face very tricky semi-final opponents.
The Gunners play host to Valencia, who for those with long memories, beat them on penalties in the final of the European Cup Winners Cup final back in 1980.
The two sides have not met since a March 2003 Champions League clash and both teams head into the first leg at the Emirates Stadium in poor form.
Arsenal have shipped three goals in each of their last three league games, all of which have been lost to leave them needing a favour to secure a top-four finish.
Los Che, meanwhile, have lost their last two in La Liga, denting their own top-four aspirations, so you should expect goals on Thursday evening – even if both teams to score is not going to offer huge rewards.
A better option, possibly, once you consider that the Gunners have kept clean sheets in their last three Europa League games, may be an Arsenal clean sheet, which offers 8/5 and the possibility of a decent return.
Chelsea, meanwhile, head to Germany for the first leg of their semi-final against Eintracht Frankfurt, with the hosts having been inspired this season by the efforts of loan striker Luka Jovic.
The in-demand Serb has already netted eight times in the Europa League this season and is a summer target for a number of major clubs, having also scored 17 Bundesliga goals this season.
The Blues are on course for a top-four league finish despite an inconsistent first season under the charge of Maurizio Sarri and have only lost once in their last eight games in all competitions.
That should give them some confidence that they can gain a positive result to take back to Stamford Bridge for the second leg.
Should they do so, then the draw looks a more likely outcome than an away win (33/20), although Chelsea have won all three of their away games in the knockout stages of the competition.
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