MLS president and deputy commissioner Mark Abbott has issued a memo to teams and league staff telling them to prepare for a potential lockout of players if a new collective bargaining agreement isn't figured out this week, according to Jeff Carlisle of ESPN. The league has imposed a deadline of Jan. 29 at midnight to negotiate with the MLS Players' Association.

Here's an excerpt of the leaked memo:

"The January 29 deadline provides all constituents -- the League, the clubs, and the players -- adequate time to prepare for the upcoming season. At this point, however, we are required to plan for the possibility that the CBA may be terminated and that a work stoppage could occur. Therefore, we will be providing the clubs with guidance later today regarding the rules that must be followed during any such work stoppage."