Andre Gray scored a hat-trick for Luton Town in a 7-0 mauling of Hereford United on the day it was revealed by [football] direct news that Arsenal are keeping tabs on the striker.[football] direct news learned that the north London club have been scouting the 22-year-old striker for a considerable amount of time and he would have impressed the scouts with a third hat-trick of the season.googletag.cmd.push(function() { googletag.display(“div-gpt-ad-1389116196215-0”); });Gray’s goals against a hapless Hereford took his tally for the season up to 22 goals – with eight of those coming in his last three games. The striker instructed his agent to reject any approach for him in January as he felt it would be “stupid” to move in the middle of the season with a good chance of Luton reinstating their Football League status. However, come the summer, Gray will be entering the final year of his contract and, with a variety of clubs sure to be interested in the England C international, the Hatters will find it hard to keep hold of their top scorer.