Former Indian opener Gautam Gambhir has slammed Kolkata Knight Riders’ think tank for not covering all the bases at the IPL 2020 auction on Thursday (December 19).

According to Gambhir, KKR don’t have any backup for the top-order and middle-order batsmen. Moreover, the former Knight Riders skipper feels the squad lack depth.  

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Australia speedster Pat Cummins ended up being the most expensive buy of IPL 2020 auction after he was fetched by KKR for INR 15.5 Crore. The two-time champions also roped in England's World Cup-winning captain Eoin Morgan for Rs 5.25 crore.

"The positive part about Pat Cummins is that you can expect him to take wickets with the new ball because he has a good swing and he bowls at good pace, he might be a concern for the death overs but he has good bowling skills and he has been with Kolkata Knight Riders in 2014 and has improved a lot since then," Gambhir said while speaking at Star Sports' Cricket Live show.

"I hope he plays all the matches and makes the team win 3-4 matches single-handedly because he has been bought for such a high amount," he added.

"But if you look at the squad as a whole, there is no backup for Andre Russell, Eoin Morgan, Sunil Narine who is a one of a kind bowler. If Eoin Morgan suffers an injury, the team has no middle order overseas batsman.

In a bid to give depth to their squad, the Kolkata-based franchise could have gone for Mitchell Marsh or Marcus Stoinis, reckons Gambhir.

"The management could have gone for a Mitchell Marsh or Marcus Stoinis who would have given more depth to the squad, so you have to hope all these players are there for the entire series," he said.

"If Pat Cummins suffers an injury, there is a replacement with Lockie Ferguson but with the top order there is no replacement for Kolkata Knight Riders," Gambhir continued.