Osmanlıspor<span class="body1"></span><span class="body1"><span class="body1">&rsquo;s </span></span>Nigeria international striker Aminu Umar is set for a spell on the sidelines due to injury,<b> allnigeriasoccer.com</b> has been informed.<br /><br />Umar has not featured for Osmanlıspor since January 29 when he lasted 75 minutes on the pitch against Genclerbirligi in the Turkish Super Lig.<br /><br />The update is that the Nigerian is set to undergo surgery because of an undisclosed ailment and will not be available for selection when Osmanlıspor tackle Olympiakos in the Europa League this coming Thursday.<br /><br />Umar&rsquo;s injury-enforced absence is a big blow to the coaching staff of Osmanlıspor as he has been one of the most in-form players for the team in the Europa League. <br /><br />In ten outings, including the qualifying rounds, the Dream Team VI star has scored 4 goals and provided 3 assists. <br /><br />Ifeanyi Emmanuel <br /><br /><span class="body1"></span><span class="body1"><span class="body1"></span></span>