The midfielder has made his first-team breakthrough in 2015-16, making 13 appearances and scoring two goals, but is now set for a spell on the sidelines after his injury setback
Atletico Madrid midfielder Thomas Partey has suffered a thigh strain, the Liga club has confirmed.
Ghanaian Partey has made his first-team breakthrough this season, having previously spent time on loan at Mallorca and Almeria.
The 22-year-old has made 13 appearances in 2015-16 and scored two goals, including the winner in Atletico's 1-0 victory over Levante last month.
A statement on Atletico's website confirmed: "The midfielder Thomas Teye Partey was unable to complete the morning's [Tuesday] training session and retired before it was over.
"After undergoing a first examination in Majadahonda's Fremap Clinic, the medical report of Atletico's midfielder indicates that he suffers a grade I injury of the vastus medialis muscle in the right thigh."
Atletico visit Getafe in La Liga on Sunday.
- Goal