Chennai Super Kings all-rounder Dwayne Bravo, Delhi Daredevils fast bowler Nathan Coulter-Nile and Royal Challengers Bangalore batsman Nic Maddinson have been ruled out of the rest of the Indian Premier League 2014 due to injury.
The franchises will be able to sign replacement players from the list of players that went unsold at the auction ahead of this season.
Bravo has an injured collarbone, Coulter-Nile a hamstring injury and Maddinson a fractured finger.
Meanwhile, the Mumbai Indians have confirmed that former captain Ricky Ponting has joined up with the squad in an advisory role for the final two games they will play in the United Arab Emirates.
"I am looking forward to working with Mumbai Indians once again," Ponting said.
"I had a fantastic season last summer and understand how passionate our players are towards the franchise.
"I believe we have the fire in us and we will strive hard to put our best."
Ponting began last season by leading the side before handing the reins over to Rohit Sharma, who captained the side to victory over the Chennai Super Kings in the final.
© Cricket World 2014