Rui Miguel Guerra Pires (born 22 March 1998) is a Portuguese professional footballer who plays as a defensive midfielder for Singapore Premier League club Lion City Sailors.

Rui began his journey in the acclaimed youth system of FC Porto, where he progressed through the ranks, featuring prominently in its Under-15, U17, and U19 sides.

During his time with Paços Ferreira, Rui showed his capabilities on the European stage, making two appearances in the 2021–22 UEFA Europa Conference League qualifiers against Tottenham Hotspurs.

On 29 June 2023, it was reported by the Portuguese press that Pires had moved to Singapore to play for Lion City Sailors.

[5] On 26 July 2023, Pires make his debut for the club in a friendly match against Tottenham Hotspurs at the Singapore National Stadium.