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Central defender Dominic Shimmin is set to make his Dover Athletic debut in the Blue Square Bet South home game against Weston-super-Mare on Saturday.
The 23-year-old was at Arsenal as a youngster with Adam Birchall, and was without a club after leaving Scottish club Dundee when they went into administration after agreeing a two-year deal last summer.
He also had a spell with Morton after three years with Queens Park Rangers.
Whites boss Martin Hayes said: "Dominic received a couple of offers but has been training with us for a week to 10 days."
Hayes has been looking for defensive re-inforcements, after becoming concerned about the number of mistakes and admitted it was the same story in the 2-1 home defeat against leaders Braintree on Tuesday night.
He said: "I got the performance I wanted in front of the home fans but we didn’t quite get the result. We put a lot into the match but still made defensive errors."
Dover face mid-table Weston hoping for vital home points, before four successive away games, starting at Havant on Monday.
Hayes added: "We have still got 51 points to play for and have got
to make sure we get a big chunk of them.
"This is not an easy league to get out of and we won’t go up on just our reputation alone."
Defender Dean Hill left the club this week to join Margate after failing to win a regular first team spot at Crabble.