Lionel Messi's future at PSG was plunged into doubt on Wednesday after he was suspended by Paris Saint-Germain after travelling to Saudi Arabia without the club's permission.A source with knowledge of the disciplinary procedure told AFP that Argentina's 35-year-old World-Cup winning captain, who is out of contract at the end of the season, would be sidelined for "several days", while various media in France reported that he would be suspended for two weeks."He cannot train, cannot play, and will not be paid while disciplinary measures are in place," the source added.Another source, also speaking on condition they were not identified, indicated that the seven-time Ballon d'Or winner would "probably" be sidelined for a fortnight, noting that "nobody is more important than the club".Messi played the whole game in PSG's 3-1 home defeat by Lorient in Ligue 1 on Sunday.He then travelled to Saudi Arabia to fulfil commercial commitments in his role as a tourism ambassador for the Gulf state.The Saudi Tourism Authority said in a press release on Wednesday that Messi had "returned to Saudi for a second time, this time with his family" and had been treated to a demonstration of palm weaving and had fed Arabian gazelles.As a result of the trip, Messi missed a training session scheduled for Monday following the weekend defeat.The PSG squad were given a day off on Tuesday and Messi did not take part in training on Wednesday either.- Remote prospect -PSG are due to return to league action away at struggling Troyes on Sunday, a game that Messi may now miss.If he were to be sidelined for two weeks he would also sit out a home match against Ajaccio on May 13.The disciplinary measures make the prospect of Messi staying in the French