Borussia Dortmund had considerably more possession (61%) but did not create enough compelling chances from it. Mainz held their own in combative fashion, won 54% of the challenges and registered as many shots at goal as BVB (12-12). The match facts.

Typically strong start to the year: As they did in the past four years, Borussia Dortmund have won their opening two games of the new calendar year.

Reyna on a run: Giovanni Reyna scored his fourth goal of the season – all in the past seven games – and equalled his personal record for a season in the process (he scored four times in 32 games in 2020/21). Reyna had previously scored the winning goal from the bench on Sunday.

Rare goal: Julian Ryerson scored only his third goal in 81 Bundesliga appearances. The Norwegian had previously netted in October/November 2021 for Union Berlin.

Midas touch: Substitutes have now scored eight goals for the Black & Yellows this season. That's a league high!

Important assist: Sébastien Haller picked up his first scorer point on his second Bundesliga appearance for BVB.

Young BVB: The average age of Dortmund's starting XI (24.9 years) was almost two years younger than Mainz's (26.8). However, they had their noses clearly in front in terms of the combined number of Bundesliga appearances (1,221) and goals (133), compared to Mainz's tally (710 Bundesliga games, 69 goals).

Captain: Niklas Süle wore the captain's armband for the first time in his Bundesliga career; he had already captained BVB in their 2-0 victory in Hanover in the DFB-Pokal second round.

Referee: Sascha Stegemann today oversaw his 124th Bundesliga game. The 38-year-old also took charge of the meeting between the teams in Mainz on Matchday 25 last season, which BVB won 1-0 thanks to a late goal from Axel Witsel (87).