Robertson said “I’ve been waiting a while to be part of a team that sets up like Notts.
“I like to take responsibility for the ball and look to pass it forward. I also enjoy getting around the pitch and doing the other side of the game.
“I’m really excited to help my team-mates continue to implement the gaffer’s style, which has proven to be successful.
“I’ve had a good chat with him and I really appreciate his intensity and level of detail. I know there’ll never be any grey areas when I go over the white line, which is a big help.
“It’s a proper football stadium and a big club. I can’t wait to get going in front of the fans.”