Bundesliga on 11 September 2016 in the 0–2 away defeat against SV Sandhausen after substituting for Stipe Vučur in the 74th minute, after regular goalkeeper André Weis had been sent-off.

During the test matches as part of the preparation for the season against Holstein Kiel and Sparta Rotterdam, Pollersbeck made mistakes, each of which led to goals conceded.

[8] Shortly before the start of the season, HSV coach Markus Gisdol finally decided on Mathenia as the starter.

[9] In order to gain match experience, Pollersbeck made his first appearance for the second team in the fourth-tier Regionalliga Nord on 2 October 2017.

[10] Due to poor form, Pollersbeck briefly lost his place as backup to regular third keeper Tom Mickel in November 2017.

[13] After the second game of the spring season, Pollersbeck lost his place to Mathenia under the new coach Bernd Hollerbach.

Also in the 2018–19 season, Pollersbeck kept his starting place under Titz and his successor Hannes Wolf and made 31 appearances in the league.

Under new head coach Dieter Hecking, Pollersbeck was demoted to third goalkeeper behind Heuer Fernandes and Tom Mickel.

Pollersbeck joined Ligue 1 club Lyon in September 2020 on a four-year deal, for an initial fee of €250,000 that could rise to €300,000.

[25] On 31 January 2023, Pollersbeck joined fellow Ligue 1 club Lorient on loan until the end of the season.

[26] On 13 June 2023, Lyon announced that a mutual agreement had been reached with Pollersbeck to terminate his contract with the club upon his return from Lorient, making him a free agent on 1 July 2023.