RB Leipzig moved back to the top of the Bundesliga on Saturday night thanks to a 2-1 win over Schalke.
Serge Gnabry has claimed Arsenal "badly wanted to keep him" before he moved to Werder Bremen last summer.
Bayern Munich bounced back from defeat to Borussia Dortmund a week ago with a 2-1 win at Bayer Leverkusen to stay second in the Bundesliga.
Hoffenheim extended their unbeaten start to an 11th game with a 2-2 draw against Hamburg, who remain rooted to the foot of the Bundesliga.
Werder Bremen have had a dig at Arsenal after Serge Gnabry's hat-trick for Germany - but the Gunners have hit back.
RB Leipzig joined Bayern Munich at the top of the Bundesliga on Sunday after a 3-1 win against Mainz saw them equal a league record.