There are growing doubts amongst Barcelona directors over the management methods of coach Tata Martino.AS says there's big concerns that the Argentine is far too detached from his playing squad, with one source describing him as a "stranger" to the players.

Martino is under huge scrutiny this week after Barca's dismal defeat at Real Valladolid.

The coach held talks with his squad yesterday, but surprised some staff by not steaming into his players for their poor performance on the weekend. Instead, he delivered a calm, brief speech.

"We still have time to react, but we must begin now," he said.

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