Arsenal had to come from behind to secure a 1-1 draw at Benfica in the first leg of their last 32 tie on Thursday.
After a scoreless first half, Benfica broke the deadlock when Pizzi converted a penalty in the 55th minute after Emile Smith-Rowe was penalised for a handball.
That joy only lasted two minutes when Bukayo Saka turned home Cedric Soares' cross from point-blank range, giving the North London giants a vita away goal.
Rangers have edge heading to next week's second leg after a thrilling 4-3 win away to Royal Antwerp.
Joseph Ayodele-Aribo handed the visitors the opening goal on 38 minutes before Felipe Nicolas and Lior Refaelov complete the comeback in the final eight minutes of the half.
Borna Barisic pulled Rangers level from the penalty spot in the 59th minute, but the Belgian outfit restored their lead through Martin Hongla Yma.
However, Steven Gerrard's men restored parity through Ryan Kent on 83 minutes before Barisic bagged the winner seven minutes later with another spot-kick.
Napoli are in danger of missing out on the Last 16 after suffering a 2-0 defeat to Granada at Estadio Nuevo Los Cármenes
The LaLiga outfit got off to the perfect start when Yangel Herrera opened the scoring on 19 minutes before Kenedy doubled the lead two minutes later.
Ajax Amsterdam rallied from behind to secure a 2-1 victory over Lille at the Stade Pierre-Mauroy.
With the first half ending scoreless, Timothy Weah got the breakthrough for the hosts on 72 minutes.
Dusan Tadic got the Dutch giants back on level terms in the 87th minute from the penalty spot before Brian Brobbey bagged the winner two minutes later.
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