Eric Dier is missing from Tottenham's preseason tour squad.
Dier has been troubled by a groin injury in recent months, and he started just 18 of Tottenham's 38 Premier League matches in 2018-19.
Prior to last season, he started at least 30 league matches in each of the previous three seasons, and manager Mauricio Pochettino will hope he returns to full fitness ahead of Tottenham's Premier League opener against Aston Villa on August 10.
A statement on the club's official website said: "Eric Dier has undergone a medical procedure to correct an issue detected during medical assessments on the first day of pre-season training.
"Following the successful procedure Eric will now undertake a short period of rehabilitation. He will therefore not travel on the club's pre-season tour to Singapore and Shanghai."
