Roland Richard Guaves Müller (German pronunciation: [ˈmʏlɐ]; born 2 March 1988)[1] is a Filipino professional footballer who plays as a goalkeeper for FC Amical Saint-Prex in the 2.

[2] Müller started at his hometown club, Köln, where he went through the ranks and eventually played their reserve team in the lower leagues.

He made his first league appearance on 25 November 2012 vs St. Pauli due to an injury to regular first choice shot-stopper Felix Wiedwald.

[9][10][11] He made his debut for the Philippine U23 national team at the Southeast Asia-wide regional games and later for the senior squad at the 2011 Long Teng Cup.

In both matches he was chosen to start ahead of Neil Etheridge and did not concede a single goal, helping the Philippines to qualify for the 2014 AFC Challenge Cup.

He was originally listed in the 23-man Philippine squad which was set to play a friendly against Malaysia the following the day,[12] which was the national team's first full international match in 2017.