As of the beginning of 2000, it could be said that Scottish football is enjoying a resurgent period, with both halves of the Old Firm being involved in European competition after Christmas for the first time in decades - Celtic F.C. reached the 2003 final of the UEFA Cup and have progressed to the last 16 of the Champions League, and Rangers to the 2008 final of the UEFA Cup. The Old Firm rivalry was interrupted in 2012, when the company running Rangers went into liquidation and the club was forced to restart in the fourth tier of Scottish Football. The two clubs then met twice in the Domestic Cup competitions, once in 2015 and once in 2016, during Rangers spell out the top league. The rivalry then resumed again in September 2016 when Rangers were promoted back into the Scottish Premiership.