Bayer Leverkusen delivers a lesson in efficiency with 3-0 win over Mainz in Bundesliga

There had been another attempt off-target before that.Leverkusen is one of three remaining unbeaten teams along with Bayern Munich and Borussia Dortmund.Bayern was playing at Leipzig later on Saturday.Also Saturday, Jan-Niklas Beste scored with a brilliant free-kick just before the hour-mark for promoted Heidenheim to beat Union Berlin 1-0 and stretch the visitors losing streak to five games across all competitions.It was Heidenheims second-ever Bundesliga win.Deniz Undav scored twice for Stuttgart to win in Cologne 2-0, and Jonas Wind did likewise for Wolfsburg to beat Eintracht Frankfurt 2-0 at home.

Bayer Leverkusen delivered a lesson in efficiency by making the most of its chances in a 3-0 win at Mainz that provisionally lifted Xabi Alonso's team back to the top of the Bundesliga on Saturday.

An own-goal from Sepp van den Berg gave Leverkusen an 18th-minute lead. The Mainz defender was trying to cut out Jeremie Frimpong's cross but only deflected the ball past his own goalkeeper.

Alejandro Grimaldo made it 2-0 with a free-kick in the 59th, six minutes before Jonas Hofmann sealed the win with what was just the visitors' second effort on target. There had been another attempt off-target before that.

Leverkusen is one of three remaining unbeaten teams along with Bayern Munich and Borussia Dortmund.

Bayern was playing at Leipzig later on Saturday.

Also Saturday, Jan-Niklas Beste scored with a brilliant free-kick just before the hour-mark for promoted Heidenheim to beat Union Berlin 1-0 and stretch the visitors' losing streak to five games across all competitions.

It was Heidenheim's second-ever Bundesliga win.

Deniz Undav scored twice for Stuttgart to win in Cologne 2-0, and Jonas Wind did likewise for Wolfsburg to beat Eintracht Frankfurt 2-0 at home. Frankfurt's Mario Götze was sent off with yellow cards on either side of the break.

Borussia Mönchengladbach defeated Bochum 3-1 away. The game started late because emergency exits at the visitors' end were covered by banners and flags before kick-off.

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