The Oakland Athletics' lease agreement with the Oakland-Alameda County Coliseum Authority runs through 2024, so if the club is going to build a new stadium, plans must be finalized soon.
The A's have yet to gain any traction with their proposed Howard Terminal ballpark.
In July, the Oakland City Council voted to approve a non-binding term sheet for the project, though team officials say they won't accept the term sheet as presented. That paves the way for the Athletics to leave Oakland.
Earlier this week commissioner Rob Manfred confirmed relocation is on the table for the Athletics, adding he is not optimistic about a new deal to keep the team in Oakland.
"Both Oakland and Tampa need new facilities. It's kind of beyond debate at this point," Rob Manfred told the Sports Business Journal.
"Oakland is probably critical, just in terms of the condition of the ballpark. Whatever you want to say about Tampa, it's playable for right now and they have a least that goes through 2027. Oakland's in a critical situation. We need to find a way to get new ballparks built in those two cities or -- particularly in the case of Oakland -- we've had to open up the opportunity to explore other locations just because it's dragged on so long. Frankly, in some ways we're not sure we see a path to success in terms of getting something built in Oakland. (Relocation) is a possibility. They've been talking to Las Vegas, it's gotten a lot of publicity, but there are options in terms of relocation in addition to Las Vegas."