<b>Allnigeriasoccer.com</b> understands that Watford striker Isaac Success has flown to Barcelona to see a specialist regarding the injury he suffered against Middlesbrough on October 16.<br /><br />The 20-year-old was accompanied on the trip by a Watford medical staff, and both are expected to return to the United Kingdom later today after the player must have undergone a check-up<br /><br />It was earlier thought that Success sustained a mild injury but it has been discovered that it<span class="_xJh">&rsquo;s something more serious, which necessitated the club</span><span class="_xJh">&rsquo;s decision to seek an expert opinion in Spain.</span><br /><br />Presently, the attacker is feeling pains inside his lap after a harsh tackle by a Boro player during the Premier League fixture. <br /><br />The former Granada starlet remains a doubt for the World Cup qualifier against Algeria on November 12, amid reports in the local media that he will be invited for the game in Uyo. <br /><br />Ifeanyi Emmanuel <br />