On 30 August 2017, it was announced that Krychowiak had joined Premier League club West Bromwich Albion on a season-long loan. On 14 October while on loan, Krychowiak said to the media that he felt deceived by Paris Saint-Germain manager Unai Emery, stating: "I spoke with the coach but every time when I spoke with him I felt deception. [...] The coach knows me very well. We spent two years together and before I signed the contract he told me to come to PSG, and I didn't play."