Arsenal boss Mikel Arteta said on Wednesday he was uncertain whether Scotland international Kieran Tierney (pix) would play again for the club this season after he suffered knee ligament damage against Liverpool. The 23-year-old fullback limped off before halftime in a 3-0 Premier League loss at home to Jurgen Klopp's men on Saturday. Arsenal confirmed on Wednesday that Tierney suffered knee ligament damage during the game and could be sidelined for the next six weeks. If that is the case, he could return for the