From alarm... to calm. Argentina can breathe easy because, barring any unwanted mishaps, Leo Messi will be available on Tuesday against Saudi Arabia in the Albiceleste's World Cup opener in Qatar. 
According to MARCA, Messi is fit to play despite missing training recently. Lionel Scaloni's coaching staff are being careful not to overload him on a daily basis so that he does not suffer any muscular problems. That is why the star did not train with the ball on Friday or Saturday.
The worry stemmed from the fact that, on Saturday, Messi left the training ground 10 minutes late and then exercised on his own, without taking part with the ball.
But Messi is fine. Argentina can breathe easy. It should be noted that Messi had just played his last league game for PSG on Sunday November 13 (against Auxerre) before joining up with Argentina, and then played the whole game in the friendly against UAE on Wednesday. Messi needed rest, and there is no need to panic.