Kovacic moved to Stamford Bridge on a year’s loan on deadline day from Real Madrid as part of the deal that saw goalkeeper Thibaut Courtois go the other way.
Despite his praise, Sherwood did mention one drawback of the move for both the player and the club.
“Kovacic is a world class player,” Sherwood told Sky Sports.
“The only problem is the Chelsea squad is a little bit imbalanced.
“It is a bit heavy in midfield areas.”
Kovacic struggled for first-team appearances in Madrid as he was competing for places with both Toni Kroos and Luka Modrić, and so appealed for a move away.
New Chelsea manager Mauricio Sarri also brought in Italian central-midfielder Jorginho for an initial £50m, a player that he managed at former club Napoli.
Kovacic arrives with a great reputation, however, he will be competing with Jorginho and the already established N’Golo Kanté and Cesc Fabregas.
The Croatia will also face competition from Danny Drinkwater, Ross Barkley, and Ruben Loftus-Cheek, so it is hard to see where exactly Kovacic will fit in to Sarri’s plans.
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