Nigeria international Joel Obi is facing a spell on the sidelines after suffering an injury in the first half of the Serie A clash between Torino and AS Roma on Sunday. <br /><br /><i>Tuttosport</i> has suggested that the attacking midfielder sustained a hamstring injury and could spend up to three weeks on the sidelines due to the ailment. <br /><br />The former Inter Milan and Parma ace will undergo further tests on Tuesday to determine the gravity of his injury and recovery time. <br /><br />As a result of the ailment, Joel Obi might be unavailable for selection against Fiorentina (October 2) and will have to undergo a fitness test before Torino tackle Palermo on October 17. <br /><br />The 25-year-old has played five games in the Italian top-flight this season. <br /><br />Igho Kingsley <br /><br />Photo Credit : inter.it<br /><br />