Carlton today reported that scans on McKay's right shoulder have confirmed a high-grade injury to his AC joint which will require surgery.
McKay, who currently leads in the Coleman Medal race with 58 goals, had previously missed only one game this season. McKay may yet hang onto the medal, given he currently holds a ten-goal lead over Josh Bruce of the Western Bulldogs and the now suspended Taylor Walker of the Adelaide Crows.
There is a logjam behind the duo with Tom Hawkins and Jack Riewoldt both on 47 goals, however, it will take two excellent performances for anyone to catch McKay, who has been among the Blues' best this season.
Jones reported knee soreness in days following the Gold Coast game, with scans revealing an injured patella.
Like McKay, Jones had managed 19 games prior to the setback, playing some of his best footy this season.
The club believes both players will be back available in time for pre-season and will make a full recovery.