Bundesliga leaders Bayern Munich slumped to a 3-1 away defeat at Mainz on Saturday handing Borussia Dortmund the chance to take top spot.
Dortmund host Eintracht Frankfurt later in the day and can go one point clear with a win, with five league matches remaining this season.
Trailing 1-0 at half-time, thanks to Sadio Mane’s first goal since October, Mainz then hit back scoring three goals through Ludovic Ajorque, Leandro Barreiro and Aaron Martin.
Meanwhile, Bayern Munich sporting director, Hasan Salihamidzic, has admitted that the club should have targeted a centre forward during last summer’s transfer window.
Bayern Munich lost Robert Lewandowski to Barcelona last year.
Instead of securing a similar replacement for Lewandowski, the Bundesliga champions went for Liverpool winger, Sadio Mane.
“With Sadio Mane, we’ve signed a new player who can also play as the No.9,” Salihamidzic told reporters via Sport 1.
“In retrospect, of course, you can be the clever one and say: That is not the case.
“Serge, King, Leroy, Sadio, Tel, Choupo, Thomas, Jamal – they’re all top players.”
Mane was recently involved in a bust-up with teammate Leroy Sane following their Champions League defeat to Manchester City in the quarter-final first-leg encounter at the Etihad Stadium.