Lionel Messi leaves his Barcelona team-mates in no doubt as to when he is angry despite his introverted nature, according to Eric Abidal.
The forward faced criticism from fellow Argentina legend and former national team coach Diego Maradona, who suggested Messi's quietness made him an ineffective captain.
But Barca's director of football Abidal insists Messi leads by example and the club captain readily makes his feelings known.
"He's an example as a captain. Not just talent-wise, also as a person," Abidal told the club's official website.
"He doesn't talk much, but he shows us everything on the field. He's a key player for us and for the dressing room.
"We always say that Leo doesn't need to talk. Everyone knows when he's angry and everyone knows when he's happy.
"His role in the team is important for the young players and the new signings.
"Leo's story is a beautiful one, but he's shown that here at Barca, with hard work, lots of things are possible.
"He's a great player and thanks to him the level of the other players increases."
Messi, who has not appeared for Argentina since the last-16 loss to eventual champions France at the World Cup in Russia, has six goals in eight LaLiga matches this season.
|Burton Albion 0 Manchester City 1 (0-10 agg): Holders coast through to clinch Wembley return|
|PSG´s Neymar hobbles off in Coupe de France clash|
|De Ligt bored of Ajax departure rumours|
|Piatek completes AC Milan move after Higuain exit|
|Super Bowl LIII: Rams RBs v Patriots RBs|
|BREAKING NEWS: Chelsea seal Higuain loan|
|Ismaily kicked out of CAF Champions League after fans throw stones, bottles|
|England star Itoje pens new Saracens deal|
|Palace keeper Hennessey charged over Instagram post|
|Chelsea warn supporters over anti-Semitic chanting ahead of Tottenham EFL Cup tie|
|Joshua primed to make call on next opponent|
|Super Bowl LIII: Brady v Goff|
|Sala search suspended as Cardiff chairman confirms club wanted different travel arrangements|
|Cruyff, Koeman, Kluivert - De Jong following pantheon of Dutch Barca greats|
|Sarfraz apologises for comments picked up by stump mic|
|Djokovic: Pouille deserves top-10 spot|
|Hazard must be more demanding if he wants to leave Chelsea, says Ballack|
|Celtics´ Kyrie Irving to sit out Cavs game with flu-like symptoms|
|Barcelona seal €86m De Jong deal|
|Vietnam v Japan: Moriyasu happy to keep doing just enough|
|Hendricks, De Kock and Steyn join up with Proteas squad|
|Lorenzo excited for ´new level´ at Repsol Honda|
|Fernando replaces injured Pradeep in Sri Lanka squad|
|China v Iran: Queiroz wants to exorcise 2015 quarter-final|
|Balotelli joins Marseille until the end of the season|
|Emery gives Monchi ringing endorsement amid Arsenal sporting director links|
|Larry Fitzgerald returning to Cardinals on one-year deal|
|Watson absence ´an opportunity´ for Scotland hopefuls, says Townsend|
|Pochettino open to new signings but Janssen to remain a Spurs outcast|
|´No trace´ of aircraft so far in Sala search|
|Pochettino will not judge Sarri for criticising Chelsea players|
|From front row to four in a row - Best takes on Farrell at Connect 4|
|Hazard an individual, not a leader - Sarri urges Chelsea star to do more|
|Broad left out of England team for first Test|
|Higuain set to sign for Chelsea but won´t face Tottenham – Sarri|
|McGillvary injury blow for Giants|
|Solari praises Marcelo amid exit rumours|
|A-League Review: Joy and pain for De Jong as Sydney close gap|
|Halfpenny, Davies and Williams set to miss France clash|
|India to rest Kohli from back end of New Zealand tour|
|The hand is good - Farrell expects to be fit to face Ireland|
|Martinez leaves Arsenal for Reading loan|
|Beckham becomes Salford City shareholder|
|Maradona hopes Sala will be found alive|
|Djokovic will not discuss potential Nadal showdown yet|
|A Federer-Nadal double? Even historic scalps may not be enough for Tsitsipas|
|Raonic to assess knee injury, hopes to avoid surgery|
|Barcelona right to fine ´complicated´ Dembele, says Ter Stegen|
|Higuain and Piatek on the move on busy day for Milan|
|Philippe and Vince humble the Hurricanes|
|Nishikori: I couldn´t beat anybody on one leg|
|Boateng poised for debut as Barcelona axe Suarez|
|Shami sets record in crushing win after sun stops play|
|Sala search focused on possible use of life raft|
|Pouille exceeds own expectations with run to Aus Open semis|
|Nishikori retirement sees Djokovic through to semi-finals|
|A golden boy, a guy you want to love - Delecroix pays emotional tribute to Sala|
|Richardson, Patterson to make Australia debuts against Sri Lanka|
|Police resume search for missing Sala plane|
|Pouille upsets Raonic to reach Australian Open semis|
|Dunk sees Stars past Strikers|
|How Serena gave up 5-1 lead – the key moments of loss to Pliskova|
|Pliskova enjoys ´best comeback´ after stunning Serena|
|Serena not blaming ankle injury for Australian Open loss|
|Mavericks capitalise on Clippers´ turnovers, pick up win in Smith´s return|
|Pliskova saves four match points to stun Serena with comeback win|
|Anthony ´can only make´ a team better, says Iverson|
|Henry more worried about Monaco´s future than his own|
|Osaka powers past Svitolina in Melbourne|
|Harden on Anthony trade: It kind of sucks that it didn´t work out|