document: The Northern Ireland Under-21 international will wear the number 28 shirt and was on the bench for Saturday's trip to Leyton Orient.
  McKnight, 20, started out as a trainee at Barnsley without making any first team appearances.
  He joined Shrewsbury last summer, but was released in January.
  Find all the latest football transfers on our dedicated page.
summary: League Two side Morecambe have signed former Shrewsbury midfielder Darren McKnight on a short-term deal until the end of the season.