If you were to look purely at Michael Mols's goal return at Rangers, 48 strikes in 147 matches in all competitions would not earn him a place in this list, but the back-story of the Dutchman ensures that he is unfortunate not to be rated higher.
After signing from FC Utrecht, Mols was flying with 13 goals in 19 outings, but in his 20th appearance, he suffered a serious knee injury during a clash with Bayern Munich goalkeeper Oliver Khan that would effectively ruin his career.
Mols eventually returned to the Rangers first-team squad after almost a year, but he wasn't the same player. He netted nine times in 45 appearances across the next two years, but he would finally earn some reward for the extreme rehabilitation process that he had to endure to get back onto the pitch.
In the 2002-03 campaign, the Netherlands international scored 14 goals to help Rangers achieve the treble, and he was finally able to seal his second league crown after having to sit out much of his previous title-winning season.
Mols won nothing in his fifth and final year at Ibrox, but he deserves enormous credit for overcoming such a severe injury to earn a league winners medal.