Chennai Super Kings' Indian Premier League campaign received a huge blow today with its charismatic in-form skipper Mahendra Singh Dhoni being ruled out of action for the next 10 days because of an elbow injury.

"Dhoni has been diagnosed with an elbow injury and has been advised 10 days rest," team manager Russell Radhakrishnan said.

Dhoni underwent an x-ray test after being hit by a rising Shane Bond delivery in yesterday's match against Kolkata Knight Riders at Eden Gardens. He, however, continued to play as led from the front with a 33-ball 66 not out to lay the platform for his team's comprehensive 55-run win over the hosts.

Later while keeping the wickets, Dhoni took a diving catch only to aggravate the bruise and had an x-ray in the evening.

"Dhoni will be out of action for the next 10 days and the exact nature of his injury is being examined by the doctors at a private hospitals here," a team management source told PTI.

The source, however, said that Dhoni will be travelling with the team to Delhi, where the Chennai side will take on Delhi Daredevils at Ferozeshah Kotla on Friday.

"He will be travelling with the team to Delhi," the source said.

Apart from the match against the Daredevils, the injury also rules Dhoni out of Chennai Super Kings' matches against Kings XI Punjab (March 21), Royal Challengers Bangalore (March 23) and Mumbai Indians (March 25).