Lionel Messi "has every right in the world" to be angry with Eric Abidal, according to former Barcelona star Rivaldo.
Tensions are running high at Camp Nou following a disappointing week of results on the pitch and an apparent dispute between the club captain and the first-team technical secretary.
Messi used a social media post to criticise Abidal after he accused some Barca players of downing tools during Ernesto Valverde's final weeks as head coach.
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Messi felt Abidal, a former team-mate at Barca, was "dirtying" the squad by making generalised comments about their efforts without naming any specific players.