Philippe Coutinho

Coutinho presented to Barcelona fans at Camp Nou

The Brazil international completed his move from Liverpool to Barca earlier in the day by undergoing a medical and signing a five-and-a-half-year contract.

Coutinho then ventured out onto the playing surface for the first time and, despite the thigh injury that is set to keep him out for three weeks, performed kick-ups to the delight of the thousands of fans in attendance.

"I'm happy to be here because of the history of the club and the players that have played here through history," he said.

Barcelona sign Coutinho from Liverpool

British media reported that the Spanish club will pay about 268 million dollars for Coutinho, making it the third most expensive transfer in football history.

"Barcelona and Liverpool have reached an agreement for the transfer of Philippe Coutinho," the La Liga leaders said in a statement.

"The player will sign a contract for the rest of the season and five more and will have a release clause of 400 million euros.

Liverpool confirmed the deal.

Liverpool lose Coutinho to injury

The midfielder went to ground in the fifth minute following a challenge from Watford defender Adrian Mariappa and was immediately seen clutching his right thigh.

Coutinho received medical treatment on the pitch, but was unable to shake off the knock having returned to the field of play and was replaced by Adam Lallana in the 13th minute.

The 24-year-old was subsequently pictured on the Liverpool substitutes' bench with an ice pack and heavy strapping around the injured area.

Coutinho signs new Reds deal

Sky sources understand the Brazil international has penned a deal that runs until 2022 and that no release clause has been inserted into the contract.

Coutinho, who recently returned from a six-week lay-off with an ankle ligament injury, has scored six goals in 18 appearances for Liverpool so far this campaign.

"I would like to thank everybody at the club, first of all," Coutinho told the club's website.