#2 Gregorz Krychowiak
Krychowiak is another example of a player who, previously, appeared to be a decent acquisition for PSG - but times have changed since then and the Poland international doesn't seem to be part of Thomas Tuchel's first-team plans ahead of the new campaign.
Signed for £25m from La Liga side Sevilla two summers ago, Krychowiak was precisely the type of player that PSG was longing for as part of their midfield.
At least, that's what they hoped. Someone to accompany Marco Verratti in defensive midfield, or if they opted for a 4-3-3, then as part of a midfield trio. Adrien Rabiot could also play there, despite his desire to play further forward in the number ten role.
Giovani Lo Celso returned from a loan spell in 2017 and has impressed over the past season, while the experienced figure of Lassana Diarra signed an 18-month contract in January - predominantly adding depth to their midfield.
The writing is on the wall, as far as Krychowiak is concerned. He only made 19 appearances before being loaned out to West Brom, who were relegated from the Premier League last season, so it's clear they looked to grant him first-team opportunities elsewhere before selling him.