Celtic goalkeeper Fraser Foster has praised Nigeria international Efe Ambrose for his defensive solidity in the Champions League.<br /><br />The Glasgow giants have booked their place in the knock - out rounds of Europe's elite club competition after finishing second in their group, only three points behind group winners Barcelona.<br /><br />Foster told <a href="http://www.dailyrecord.co.uk/all-about/celtic%20fc">dailyrecord.co.uk</a>: ''Efe Ambrose has been brilliant since arriving while Kelvin Wilson has been unbelievable.<br /><br />''The back four have been tremendous. They&rsquo;ve been chucking their bodies on the line to make things easier for me.''<br /><br />Ambrose, who is expected to make Nigeria's roster for the African Cup, played 5 matches in the Champions League. <br /><br />His stand - out performance was against Barcelona at the Nou Camp, with UEFA naming the defender in its prestigious Team of the Week for the third round of games.<br />