Derby County manager Nigel Clough still hopes to make some new signings to bolster his squad for the new season.
Clough told BBC Radio Derby: "The squad is pretty light with injuries so we would like to strengthen - ideally before the start of the season.
"If it's loans then we have until the end of August. We'll keep ringing."
Clough has also confirmed he is keen on finalising deals for forwards Conor Doyle and Amari Morgan-Smith - both of whom have been on trial with the club.
American forward Doyle, 18, has played in all four Rams first-team pre-season friendlies, scoring in Saturday's 5-4 win over Chesterfield. And Clough said he "hopes" to be able to bring him to Pride Park on a permanent deal.
"Conor has done very well," Clough added. "We have been impressed with him. He's at college in America and it is really about whether he wants to give that up and have a go at professional football.
"He certainly doesn't look out of place in the first team and he shows touches that we can work with."
The Rams boss is also eager to follow up his interest in 21-year-old Ilkeston Town frontman Morgan-Smith.
Clough said: "We are impressed with Amari; he is a young raw striker with a bit of pace that we haven't got and even at that level, if the deal was right, we would like to do something with him."
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