Three clubs sit level on 59 points heading into the final day, but only one can secure automatic promotion to the Bundesliga while another faces a playoff lottery.
VfL Bochum midfielder Mats Pannewig faces an extended spell on the sidelines after sustaining a shin injury against Hannover 96, ruling him out of the season finale and the start of pre-season.
SV Elversberg moved into second place in the 2. Bundesliga after a dominant 5-1 victory over promotion rivals SC Paderborn 07, putting them in control of their destiny with two games remaining.
Hannover 96 missed the chance to climb to second place in the 2. Bundesliga after conceding a stoppage-time equaliser to bottom-placed Preußen Münster in a thrilling 3-3 draw on Sunday.
Hannover 96 aim to strengthen their promotion push against bottom-placed SC Preußen Münster this Sunday, as the visitors fight to avoid relegation from the 2. Bundesliga.