"They're in the club now and we can have a real look at them," said Kean. "I've not seen them play live.
Who are Blackburn's deadline day signings?
Goalkeeper, 22, capped three times by Poland, was part of 23-man squad at Euro 2012
Midfielder, 22, played for Portugal at Under-21 level, signed from Sporting Lisbon
Defender, 25, signed from Academica De Coimbra
"Shebby Singh was very excited about them coming here and was telling me how good they were."
The Scot continued: "We feel as though we can improve any player that comes to the club and also integrate them as quickly as possible.
"Shebby went to see Nuno Henrique play for Academica on the Friday before we played Leicester and told me he played very well.
"The reports we have for Greg, who has played a lot of first-team football, are good but I've not seen him play myself."
Singh, a former Malaysia international who had been working as a football pundit in Asia, was appointed to the role at Blackburn in June. Singh says owners Venky's have tasked him with
"doing whatever he has to do" to win promotion
Blackburn signed 12 new players between the end of the season and the conclusion of the transfer window.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.