What a day to be inside the sold-out Mewa Arena. Mainz almost over the line...

Lewandowski shimmies across the box, before shooting low. A deflection wrong-foots Zentner, but he scrambles to his right to swat it behind.

Onisiwo takes aim from the edge of the area. Ulreich is beaten, but the ball smacks the crossbar. Mainz could have had five or six goals today!

Barreiro puts the ball on a plate for Burkardt. He's unmarked on the edge of the six-yard box, but curls wide!

Just as Bayern are building up a head of steam, Mainz restore their two-goal lead. Stach wins the ball back from Sane in the Mainz half, the Germany international proceeding to release Onisiwo. He wriggles away from Davies and finds Widmer, who cuts in and tees up Barreiro in the box. The Mainz midfielder aims for the far top corner, but a wicked deflection off Pavard takes it in the other direction, over Ulreich and in off the bar.

Süle sticks out a boot to direct Stach's goal-bound shot over the crossbar. Ulreich wasn't going to get it.

Ulreich is at full stretch as Barreiro arrows a first-time strike narrowly wide of the post from 18 yards. That all came about after Gnabry miscued his clearance from a Martin free-kick.

Bayern's zonal marking fails them again as Widmer meets Martin's cross from deep, heading over. Nagelsmann will surely make changes at the break...

Lewandowski's caught out defending for Bayern. Niakhate wins the challenge and feeds Burkardt, who helps it on to Onisiwo. He turns Hernandez, but the ball is just a bit too far in front of him and he screws his shot wide.

Bayern are all at sea once more as Martin sends in an in-swinging free-kick. Stach helps it on at the near post, with Niakhate one of three unmarked players only too happy to steer it home from close range.

Mainz deservedly ahead at the Mewa Arena! Hernandez collects a throw and passes back to Ulreich. Kohr returns his tame clearance with interest, and there's Burkardt - just inside the box - to sweep a first-time finish under Ulreich. It has been coming!

Hack gets up to another corner, this time forcing Ulreich into evasive action. Mainz need to make one of these stick.

Another promising moment for Mainz as Onisiwo cuts in off the left. Barreiro has a go from the edge of the area, but doesn't catch it well and Ulreich can gather.

Stach whips over a corner from the left. Hack's unmarked in the six-yard box, but sends his header against the top of the bar. Another let-off for Bayern, who aren't quite at the races.

Mainz use the right-hand flank again. Onisiwo gets away from Davies and crosses for Burkardt, who fires off target under pressure from Pavard.

Mainz on the attack in the early stages, roared on by the 12th man. Stach gets in behind and finds Burkardt in the box. It's an impossible angle, and his strike cannons back off the bar, post and out.