Mosquera, who was born in Alicante but has Colombian heritage, started out as a basketball player before making the switch to futsal and joining local side San Blas Canavate, who were looking for an additional player to play in a youth tournament
He swapped his love of futsal for football in 2013, joining Alicante’s biggest team Hercules, and playing as a pacey winger. He then joined Valencia’s youth set-up as a 12-year-old in 2016.
Six years progressing through the club’s youth ranks sparked his transformation into a defender, and he finally made his first team debut in a Copa del Rey fixture against CD Atletico Baleares in January 2022.
He can play at both centre-back and right-back and has now racked up 90 senior appearances for Valencia, scoring one goal along the way.
Arsenal already boast several of the Premier League’s best one-on-one defenders, and in Mosquera they’d be signing a player who excels against opponents with the ball at their feet.
The 21-year-old won 70.7% of his ground duels in La Liga last season, far surpassing any other central defender to have contested at least 100 of them.
He also won possession an average of 5.15 times per 90 minutes, the third-highest figure in the division among players in his position.