The Premier Soccer League have indicated they will take action following claims that certain players and officials registered with the League have been involved in match-fixing and corruption.
Tignyemb and Celtic teammate Lantshene Phalane are among the PSL players whose names have cropped up in reports, as have the likes of University of Pretoria pair Washington Arubi and Partson Jaure, and Polokwane City's George Chigova and Lebogang Motumi.
"I have seen the reports. But I don't care about everything being said because I know that I am clean," Tignyemb tells KickOff.com.
"I am a Christian, I wouldn't do something against the will of God. I have been loyal to Celtic, they have been good to me. I wouldn't do anything to hurt the image and reputation of the club. I love Celtic and I am going to retire here.
"You saw my performance today (last night) against Sundowns. I am happy for the club. I am happy that we won and we need to build on this performance."