Lionel Messi, Gerard Pique and Luis Suarez warm up during training at Anfield. EPA
Barcelona defender Samuel Umtiti takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Barcelona midfielder Arthur takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Barcelona midfielder Philippe Coutinho, centre, takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Barcelona striker Luis Suarez takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Barcelona captain Lionel Messi, left, takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Luis Suarez and Barcelona teammates take part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AP Photo
Lionel Messi and Luis Suarez during the training session at Anfield. EPA
Lionel Messi takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. EPA
Barcelona players warm up ahead of the training session at Anfield. EPA
Lionel Messi, Gerard Pique and Luis Suarez warm up during training at Anfield. EPA
Barcelona defender Samuel Umtiti takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Barcelona midfielder Arthur takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Barcelona midfielder Philippe Coutinho, centre, takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Barcelona striker Luis Suarez takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Barcelona captain Lionel Messi, left, takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AFP
Luis Suarez and Barcelona teammates take part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. AP Photo
Lionel Messi and Luis Suarez during the training session at Anfield. EPA
Lionel Messi takes part in training at Anfield ahead of the Uefa Champions League semi-final, second leg against Liverpool. EPA
Barcelona players warm up ahead of the training session at Anfield. EPA
Lionel Messi, Gerard Pique and Luis Suarez warm up during training at Anfield. EPA