4. Pat Cummins
The 25-year-old Australian pacer was purchased by Mumbai Indians in the grand auction of 2018. But a back injury forced him to remain out of the entire tournament and was eventually replaced by Kiwi pacer Adam Milne.
Cummins can be a great asset for any team, but his injury profile prevents franchise owners to but him for huge prices.
Moreover with the World Cup scheduled to begin in England and Wales just after the IPL ends, Cummins is currently trying to keep himself fit. So there is a good chance that he might skip the entire IPL or part of it and hence he will likely remain unsold.