text: Quinn, 30, is available for Sunday's Scottish League Cup semi-final against Celtic.
  He was on the bench in the Dons' third-round defeat by Hibernian but did not feature.
  Following spells at Motherwell, Cardiff City and Doncaster Rovers, Quinn spent a season with County before joining Aberdeen last summer.
  He has made more than 360 senior appearances and was capped by Scotland's Under-21 side earlier in his career.
  For all the latest transfers check out our transfer deals page.
target: Defender Paul Quinn has rejoined Ross County on an 18-month contract after agreeing his release from Aberdeen.