The 25-year-old defender’s contract at Notts County was terminated by mutual consent and Hollis reunites with manager Mark Cooper, who he played under at Meadow Lane.
“I’m delighted to be here and work for the manager again but more importantly I’m delighted to try and be playing football again,” Hollis said.
“I love a challenge and a fight. The competition at the back now keeps everyone on their toes and with competition, people are going to push each other.
“From an outsider, it is a small football club but it’s got a big heart and a lot of passion and I am buzzing to be part of it.”
Cooper said: “I know Haydn from Notts County, he’s a big, powerful, left-sided centre-back and we’re just making sure we’re covering all our basis and we have enough players if we do get injuries.”
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