Gianluca Mancini's second-half own goal allowed Leicester City to draw 1-1 with Jose Mourinho's Roma in the first leg of their Europa Conference League semi-final on Thursday, while Feyenoord got the better of Marseille in a five-goal thriller.
Mancini got the final touch midway through the second half as he tried to stop Ademola Lookman turning in a low ball driven into the six-yard box by Harvey Barnes.
That brought Leicester level in their first ever European semi-final after Lorenzo Pellegrini had given Roma an early lead at the King Power Stadium.
The tie, which pits Mourinho against Brendan Rodgers, his one-time protege on the coaching staff at Chelsea, is now poised ahead of next week's return in Italy.
Mourinho is hoping to add the new third-tier European trophy to his collection having won two Champions Leagues, a UEFA Cup and a Europa League during his managerial career, and Roma could not have asked for a better start.
They went ahead on the quarter-hour mark when Nicola Zalewski collected the ball on the left and powered forward before playing in captain Pellegrini to fire low past Kasper Schmeichel in the Leicester goal.
Last season's FA Cup winners, who dropped into the Conference League after going out of the Europa League in the group stage, were then dealt a blow as Timothy Castagne was forced off midway through the first half.
Lookman tested goalkeeper Rui Patricio from range just after the half-hour mark but it was the second-half introduction of Barnes that proved crucial in getting the Premier League side back on level terms.
Barnes replaced Marc Albrighton at the same time Kelechi Iheanacho was sent on for Jamie Vardy, the veteran forward making his first start since early March following his latest injury setback.
It was Barnes who drove into the box before drilling a low ball in from the left side of the area towards Nigerian international Lookman. Italian international defender Mancini ended up helping the ball over the line to make it 1-1.
Rui Patricio then tipped an Iheanacho shot around the post and Leicester - whose former striker Gary Lineker was watching from the stands - will have to find a way of winning in Rome if they are to reach the final in the Albanian capital Tirana at the end of next month.