In the 2010 Super 14 season, Sireli shared the right wing position with Gio Aplon since his left wing berth now belonged to Springboks winger, Bryan Habana. His performance in the first few weeks was average but he picked his game in Week 4 and was named the man of the match against the Hurricanes in Week 5. Since then he has been consistent and has become a valuable member of the team and after an injury to fullback Joe Pietersen forced the coach, Allister Coetzee to play Aplon at fullback thus allowing Naqelevuki to start most games on the right wing pairing Jaque Fourie as his outside centre partner. His changed of attitude has gone down well with local fans who were angry after his dismissal performance for Western Province in the Currie Cup cost them a place in the semi-finals. After he was unceremoniously dumped after his game against the Sharks, he wasn't selected for the remaining matches including the semi-final and the grand final, he returned to Fiji to take part in the 2010 IRB Pacific Nations Cup. He has had offers from European clubs though he still has not signed a contract to date. He was released from his contract with the Stormers and Western Province after the 2010 Super 14 season.