David Holdsworth fears teams will attempt to lure away star striker Jamie Taylor before the transfer window slams shut on Friday night.
The Lincoln City striker was the subject of a number of inquiries during the summer and he will have caught their eye again in the opening matches of the season with three goals from five games.
But Imps boss Holdsworth has declared that he is determined to fight to keep the talented forward at the club.
"There was a lot of interest in the summer about Taylor," said Holdsworth.
"But both the chairman, Bob Dorrian, and I agreed to keep him here.
"It has proved to be a good decision and I'm delighted with the start that he has made.
"I know other clubs will be taking notice after the start he has had, but I want to keep him.
"Jamie knows how much I value him and the rest of the team."
If Lincoln lost Taylor it would be a big dent in Holdsworth's plans after the club reluctantly parted with Sam Smith in the summer.
The striker was the Imps' top scorer last season and Cambridge United were rebuffed once, before the Imps finally allowed him to leave in a deal believed to be worth £25,000.
It was an offer the cash-strapped Imps could not afford to turn down and Holdsworth admits the transfer window set-up is detrimental to clubs like Lincoln.
Speaking in his column in the Echo this week, he backed Fulham boss Martin Jol, who called on the window to close before the start of the season.
"You want to keep hold of all players and get the best squad you can," said Holdsworth.
"If we lost anyone in our current position, life would be very tricky."
Holdsworth has boosted his midfield options with the signing of French midfielder Mamadou Fofana.
Fofana, 24, has played for CS Sedan, Olympique Noisy-le- Sec and La Vitréenne FC in France and has recently been at Swedish outfit Syrianska FC.
Holdsworth said: "Fofana has been training with us and impressed everyone in the dressing room.
"He is strong and can cope with the physical demands of the division.
"It is good to have him on board as he gives me another option in the middle of the park."
While Fofana has joined the Imps, Mark McCammon and Luke Daley left the club on Wednesday. The pair were on non-contract terms.
It is also understood that Lincoln are currently trying to come to an agreement to cancel Josh Gowling's contract.