Danny Latza headed a late equaliser as Mainz clinched a 1-1 home draw against Borussia Dortmund in the Bundesliga.
Marco Reus struck an early goal for Dortmund, who would have climbed up to third in the table with victory, but Mainz midfielder Latza's 83rd-minute header denied the visitors back-to-back league wins.
Reus, recently linked with a move to Premier League title-chasers Arsenal, fired Dortmund ahead in the third minute when he got on the end of a swift counter-attack to convert Andre Schurrle's assist.
Schurrle went close to extending Dortmund's lead in the second half but his goal-bound shot was saved in the bottom corner by Mainz goalkeeper Jonas Lossl.
Latza headed home Levin Oztunali's cross to secure the hosts a second-successive league draw, while the home side went close to snatching victory in stoppage time when substitute Pablo De Blasis fired narrowly wide.