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United will take the short stroll up Tannadice Street buoyed by a stoppage-time winner over Aberdeen that means there is only a three-point gap between themselves and Saturday's faltering third-top visitors. The Dark Blues, meanwhile, ended a three-game run without a victory by beating St Mirren 2-1 to narrow the gap between themselves and their hosts, as well as sixth-placed Motherwell, to five points. Following that up with a derby win is therefore vital for Tony Docherty's side if they are to retain hopes of a top-six finish instead of looking behind them to a relegation battle.
Jamie McGrath will be relishing the visit of Ross County as the midfielder looks to help end Aberdeen's dismal run of eight games without defeat and three consecutive defeats. The 28-year-old Republic of Ireland cap has scored six goals in his last six Premiership appearances against the Highland side. Having scored five times this season overall, and being the top provider to six Premiership goals - along with Celtic winger Nicolas Kuhn and Motherwell midfielder Lennon Miller - McGrath will no doubt find himself a marked man by the visitors.