The Dallas Cowboys have the unenviable task of trying to contain the high-flying attack of Brock Purdy and the San Francisco 49ers in this coming Sunday's Week 10 showdown at AT&T Stadium in Arlington.

Cowboys defensive coordinator Christian Parker surely is looking at ways to slow down San Francisco's offense, and one that he is particularly concerned about is the Niners' pre-snap activities, as pointed out by Ed Werder of WFAA.

“Cowboys DC Christian Parker, when asked about the 49ers using presnap motion at the highest rate in the league, stressed the importance of eye discipline and to know where opponents are when ball actually snapped because ‘You don’t want to be chasing that rabbitt all day,'” Werder shared via a social media post on X, formerly Twitter.

The 49ers have one of the most prolific offenses in the league, entering Week 10 with an average of 29.4 points per game — third-best overall. They are also putting up 376.8 total yards per outing, and that's despite dealing with numerous injuries. Brock Purdy has been as steady as they come at quarterback, coming into this showdown versus the Cowboys with a league-best 81.4 quarterback rating.

With weapons like do-it-all running back Christian McCaffrey and star tight end George Kittle, the 49ers have been quite a lot to deal. The 49ers love to find mismatches, and those pre-snap movements are key to making that happen for them.

It is going to be a big challenge for Parker to devise an effective plan against that San Francisco offense. On the season, the Cowboys are just 25th in the league with 26.2 points allowed per game and 30th with 372.7 total yards given up per outing.