text: Former Manchester United midfielder Quinton Fortune claims Neymar looked a shadow of his former self during Barcelona's slender 1-0 La Liga win over Celta Vigo. Barcelona ensured they remained four points clear of title rivals Real Madrid by scrapping to a hard-fought victory over mid-table outfit Celta Vigo. However despite the win, Fortune insists Barcelona boss Luis Enrique should be concerned by Neymar's body language during the La Liga encounter. Quinton Fortune claims Neymar looked uncomfortable during Barcelona's 1-0 win over Celta Vigo . Neymar, pictured with fellow Barcelona superstar Lionel Messi, struggled to impress against Celta Vigo . The Brazilian forward has failed to hit the back of the net in his last four games for Barcelona . Fortune, speaking on Sky Sports, said during the interval of Barcelona's match at Balaidos: 'Neymar has not been himself for the last couple of weeks. 'You expect Neymar to at least hit the target [when he shoots at goal]. His body language does not look right.' Neymar's last league goal came against Levante on February 15 and he has failed to hit the back of the net in his last four games in a Barcelona shirt. Fortune, who himself played in Spain during his time at Mallorca and Atletico Madrid in the 1990s, went on to praise Barcelona for having a plan B when it came to breaking down Celta Vigo's resilient defence. Jeremy Mathieu (right) heads home in the 73rd minute to hand Barcelona a 1-0 lead against Celta Vigo . Celta Vigo goalkeeper Alvarez Conde (right) is unable to stop the powerful header from Mathieu . He added: ‘The win is very important for the whole team. It was a bit of quality. That is what happens when you do not score against Barcelona when you are on top. 'Barcelona have been playing nice football for years but it seems like they are now capable of scoring from set pieces. ‘Barcelona are not playing well and still getting results. They did the same thing against Real Madrid because I thought Madrid were the better side but they have the know-how.’ Enrique's side claimed all three points thanks to a close-range bullet header by Jeremy Mathieu in the 73rd minute. Gerard Pique (right) and Sergio Busquets join the French defender in celebrating Mathieu's second-half goal .
target: Neymar struggled to impress in Barcelona's slender win over Celta Vigo .
  Quinton Fortune has questioned why Neymar's form has dipped .
  Neymar has failed to score in his last four games for Barcelona .
  Fortune heaped praise on Barca for being able to scrape vital win .