Bundesliga side Union Berlin are interested in signing central-defender Amos Pieper from Arminia Bielefeld, according to Kicker.
Although not mathematically relegated, Arminia Bielefeld will need a huge swing in goals to avoid the drop this season with one game remaining.
Per the report, Pieper would like to remain in the Bundesliga.
Union Berlin have already signed Paul Seguin and Janik Haberer on free transfers and Pieper could be the next to follow, with his current deal expiring in the summer.
