Mainz 05 Secures Historic Conference League Quarter-Final Spot with Second-Half Blitz

After a goalless draw in the first leg, a crucial goal scored shortly after the restart in the home second leg laid the groundwork for Mainz's progression.

March 19, 2026, will forever be etched into Mainz's club history. For the first time ever, the Bundesliga club has reached a quarter-final in a European competition. In the Conference League Round of 16 second leg on Thursday evening, the "Nullfünfer" (Mainz 05) defeated Czech Cup winners Sigma Olomouc 2-0 (0-0), successfully advancing to the next round after a goalless first leg.

Stefan Posch's header in the 46th minute and Armindo Sieb's goal in the 82nd minute ensured a memorable and historic evening for Mainz 05. Olomouc finished the match with ten men after Peter Barath received a yellow-red card in the 76th minute. While the Rheinhessen are currently battling relegation in the Bundesliga, their dream of reaching the Conference League final in Leipzig on May 28 continues. The quarter-finals are scheduled for April 9 and 16, with Mainz playing their first leg at home.

"We want to be confident and courageous," said Mainz coach Urs Fischer before the match. His players evidently took this to heart: from the outset, the "Nullfünfer" were determined to create offensive opportunities. Mainz maintained control of the game and their opponent, though they were fortunate after 20 minutes when Danijel Sturm narrowly missed putting the visitors ahead.

Stefan Posch Delivers an Early Second-Half Breakthrough for Mainz

The match gradually became more balanced, but Mainz registered the next dangerous scoring opportunity: Phillipp Mwene's long-range shot narrowly missed to the right of the goal in the 35th minute. Just before halftime, Nelson Weiper squandered another chance with a header in the 45th minute.

The second half kicked off with an immediate impact: Paul Nebel delivered a precise cross from the right flank, and Posch headed it in for the opening goal. Energized by the lead, Mainz continued to push forward, while Olomouc found little relief. As the second half progressed, the pace of the game somewhat slowed, and the visitors remained largely unthreatening. Barath's red card played directly into Mainz's hands; Nebel's subsequent free-kick struck the crossbar in the 78th minute. However, Sieb then decisively extended their lead, sealing the victory.

Match Data: FSV Mainz 05 vs. Sigma Olomouc 2:0 (0:0)

Detail	Description
Match	FSV Mainz 05 vs. Sigma Olomouc
Result	2:0 (0:0); First leg: 0:0; Aggregate: 2:0
Goals	1:0 Posch (46th), 2:0 Sieb (83rd)
Competition	Conference League, Round of 16, Second leg