Watford defender Pervis Estupinian is interesting Chelsea and Manchester United.

Ecuador's Expreso reports United have joined Chelsea in the race to sign Estupinian.

Osasuna signed the 22-year-old on a two-season loan last summer and he quickly made the left-back spot his own as the LaLiga side steered clear of relegation trouble.

United and Chelsea are said to have scouted Estupinan, whose future is entirely in the hands of Watford despite his spell in Spain.

In 11th place at the break, newly promoted Osasuna have eased into mid-table with their loanee playing every minute of their league campaign bar a single match he was suspended for.

Estupinan impressed Watford when breaking out at Ecuadorian side LDU Quito and has also been sent to Granada, Almeria and Mallorca for first-team experience.

Therefore, despite signing in 2016, he is yet to play a game for the Hornets at any level.