Néstor Fernando Muslera Micol (Spanish: [feɾˈnando musˈleɾa]; born 16 June 1986) is a Uruguayan professional footballer who plays as a goalkeeper for AFA Liga Profesional de Fútbol club Estudiantes de La Plata.
Muslera began his career at Montevideo Wanderers and Nacional, before moving to Lazio in 2007 where he won the 2009 Coppa Italia. In 2011, he was signed by Galatasaray for a fee of around €7 million. He made 551 competitive appearances for the club, winning eight Süper Lig titles, five Turkish Cups and six Turkish Super Cups. He left the club in 2025, joining Estudiantes in Argentina, where he won the 2025 Clausura.
Between 2009 to 2026, Muslera earned 137 caps for the Uruguay national team. He represented Uruguay at five Copa América tournaments, winning the title in 2011. He also represented them at five FIFA World Cups, appearing at the 2010, 2014, 2018, 2022, and 2026 editions.
Muslera was born in Buenos Aires, Argentina, on 16 June 1986, to Uruguayan parents working temporarily in the neighbouring country. He was born minutes after Argentina eliminated Uruguay from the last 16 of the 1986 FIFA World Cup and the obstetrician, unaware of his mother's nationality, recommended that she name him after Argentina's goalscorer, Pedro Pasculli. He was instead named after Uruguayan Fernando Morena. At the age of eight months, he relocated to Uruguay, but retained dual nationality.
Muslera began his professional football career with Montevideo Wanderers, having come through the club's youth system. After impressive performances for Wanderers, Uruguayan giants Nacional opted to take him on loan in 2007. After a display of successful performances, he began to attract attention from European clubs, and signed for Lazio in 2007.
Lazio signed Muslera in August 2007 for a fee of approximately €3 million. He made his debut for Lazio in a 3–1 home win against Cagliari on 16 September 2007, and made four more consecutive starts, the last which was a disastrous performance in Lazio's 5–1 home loss to Milan on 7 October, a match in which he was at fault for four of the five goals Lazio conceded. That result saw him benched in favour of 44-year-old Marco Ballotta. He remained as the second-choice for the remainder of the season, making only four more Serie A appearances and none in the UEFA Champions League. However, he did play all of Lazio's remaining Coppa Italia matches, putting in good performances.
Muslera began the 2008–09 season as second-choice goalkeeper behind new signing Juan Pablo Carrizo, but regained the starting spot in January 2009 following a run of poor form by Carrizo, coupled with conflicts with team management. Muslera's first starting appearance in the Serie A season saw him make several saves in a 3–1 loss to Sampdoria, including saving an Antonio Cassano penalty. Further impressive performances in away wins over Napoli and Genoa, as well as in his first ever Derby della Capitale against Roma, saw Muslera regain a considerable amount of faith he had lost the previous season.
Known to the Lazio fans as "Castorino", or the "little beaver", Muslera was also an integral part of the club's successful 2008–09 Coppa Italia campaign, making decisive saves against Milan and Juventus as Lazio reached the final for the first time in five seasons. In the final on 13 May 2009, Muslera saved two penalties as Lazio emerged victorious 6–5 in the shootout after the match ended 1–1 in extra time.
The Uruguayan's impressive season saw him cement his position as the Roman club's first choice in the 2009–10 season, despite the arrival of Argentine goalkeeper Albano Bizzarri on a free transfer. Muslera played in goal as Lazio opened the season with a 2–1 win over 2008–09 Serie A champions Internazionale in the 2009 Supercoppa Italiana, played in Beijing.
Following his successful performance in the 2010 FIFA World Cup with Uruguay, Muslera was voted the seventh-best goalkeeper in the world by the International Federation of Football History & Statistics.
On 19 July 2011, Turkish Süper Lig club Galatasaray announced the signing of Muslera from Lazio on a five-year contract while he was on duty in the 2011 Copa América with Uruguay. The transfer involved Lorik Cana moving in the opposite direction to Lazio, while Galatasaray also paid €6.75 million to Muslera's former club, Montevideo Wanderers, which owned 50% of his playing rights. (However, Lazio valued the sale of Muslera for free (as termination of contract) as well as signing Cana for a peppercorn of €1 as a special accounting arrangement) Muslera's contract saw him earn €2 million per year.
On 5 November 2011, Muslera was selected the man of the match after saving his first penalty for Galatasaray in the match against Mersin İdmanyurdu, a 0–0 draw. On 8 April 2012, the last day of the 2011–12 Süper Lig season, Muslera scored his first career goal, a penalty against Manisaspor. The same match also resulted in Muslera keeping his 19th clean sheet of the season, an all-time league record.
Muslera continued to become Galatasaray's first choice goalkeeper in 2012–13, playing in the first match of the season in a 2–1 league victory over Kasımpaşa. On 19 September 2012, he made his UEFA Champions League debut in a match against Manchester United at Old Trafford. Though Galatasaray lost the match 1–0, he saved a penalty from Nani. He kept his first clean sheet in the competition in a 1–0 victory against Manchester United at the Türk Telekom Arena. He played 33 league matches out of 34 with Galatasaray, who retained their league title.
On 3 November 2013, Muslera suffered a fractured toe and therefore missed three Süper Lig and two Champions League matches. However, he played 29 league matches out of 34. At the end of the 2013–14 season, it was announced Muslera extended his contract until 2018, and would earn €2.75 million per season.
Muslera played 31 matches as Galatasaray regained their league title, but was absent in their cup final victory over Bursaspor due to his commitments for the 2015 Copa América.
In a league match against Çaykur Rizespor on 14 June 2020, Muslera suffered a double leg fracture as he collided with a Rizespor player in his box.
On 27 February 2021, Muslera played his 300th league match for Galatasaray against BB Erzurumspor, breaking the appearances record for a foreign player in the Süper Lig.
On 13 December 2021, in an away league match against Sivasspor, Muslera collided with his teammate Christian Luyindama in his box and was left writhing in pain. Galatasaray stated that the collision had torn the medial collateral ligament on Muslera’s left knee and also hurt the anterior cruciate ligament.