Celtic manager Brendan Rodgers has described captain Scott Brown as a "remarkable leader" ahead of his 400th appearance for the club.
The 31-year-old joined the Hoops in 2007 from Hibernian and is set to reach the landmark in Wednesday's home league game against St Johnstone.
Rodgers told BBC Sport: "[Brown] sets an incredible example. It's a remarkable achievement by a top-class professional. My first impressions of him were very positive and he's a remarkable leader.
"To play the number of games at a club this size, your professionalism, your enthusiasm, your energy for the game and your commitment to being a top professional has to be there.
"The players take a great lead from him and he's been at the top of his game this season. Four hundred would be great for him, but there's quite a few more to come as well."
Avoiding defeat on Wednesday would mean that Celtic have gone 26 domestic games unbeaten, equalling a club record that has stood since the 1966-67 season.
