Arsenal manager Arsene Wenger has stressed that his team will pay special attention to Odion Ighalo in Saturday&rsquo;s Premier League clash against Watford.<br /><br />The Nigeria international is in the form of his life for club and country, scoring 5 goals in 8 games in the top flight, and was on target against Cameroon in a high - profile friendly in Belgium last weekend.<br /><br />Wenger admitted that the ex Granada and Udinese man was an unknown quantity until his goals for the Hornets put him in the spotlight.<br /><br />&ldquo;He has been a huge surprise as who knew him? &rdquo; said Wenger to arsenal.com.<br /><br />&ldquo;Not many people knew him before the Premier League started and to score five goals in eight games you need to have special qualities, no matter who you play for. &rdquo; <br /><br />Ighalo has registered his name on the scoresheet 4 times in his last 4 games in the Premier League and was nominated for the Premier League Player of the Month award for September, an accolade that was eventually won by Anthony Martial.<br />