Saturday's matchup between No. 4 Ohio State and Michigan at Ohio Stadium in Columbus has been canceled, Michigan announced on Tuesday. The annual rivalry game between the Buckeyes and Wolverines will not be rescheduled. The cancellation also carries some potential College Football Playoff implications as the Buckeyes now will fall below the required six games to be played in order to gain eligibility into the Big Ten Championship Game on Dec. 19. Michigan returned to the practice field in limited capacity on Monday after multiple positive COVID-19 cases and contact tracing forced a shutdown last week. However, coach Jim Harbaugh's scheduled press conference slated for Tuesday was abruptly canceled by Michigan without an explanation as the cancellation was presumably in the works. "The number of positive tests has continued to trend in an upward direction over the last seven days," said Michigan athletic director Warde Manuel. "We have not been cleared to participate in practice at this time. Unfortunately, we will not be able to field a team due to COVID-19 positives and the associated quarantining required of close-contact individuals. This decision is disappointing for our team and coaches but their health and safety is paramount, and it will always come first in our decision-making." Ohio State coach Ryan Day pushed for contingency plans earlier in the day during his press conference on Tuesday -- specifically requesting a path to become eligible for the Big Ten Championship Game. The third-year coach of the Buckeyes said that the conference should take a "hard look" at the six-game minimum to qualify for the game. SUBSCRIBE TO OUR CHANNEL: https://www.youtube.com/user/CBSSportsHQ FOLLOW US ON: Facebook - https://www.facebook.com/CBSSports/ Instagram - https://www.instagram.com/cbssports/ Twitter - https://twitter.com/CBSSports