Lionel Messi has been sent for medical tests on kidney problems, Barcelona announced on Monday.
Barcelona has confirmed that Lionel Messi has undergone further tests on kidney problems which first emerged in December.
The Argentina international missed part of the Club World Cup in Japan as a result of renal colic, an abdominal discomfort commonly caused by kidney stones.
Reports emerged in Spain on Monday suggesting Messi could face minor surgery in order to correct the problem, which has persisted in recent weeks despite the 28-year-old missing only one match in 2016 so far.
Barca has clarified that medical checks are due to take place over two days this week but expects the forward to return to team training on Wednesday.