Adrian Beltre hasn't been a free agent for very long, but already, according to his agent, he's drawn a ton of interest from a ton of teams. And it would appear that the Oakland A's have stepped up to make the first formal offer, putting together - according to one Spanish-language report - a five-year proposal worth $45 million.

Beltre won't accept this offer without hearing out the remaining teams, but this is interesting as a starting point. Also interesting is that it's just another display of Oakland's aggressiveness, as they've already won the bidding for Japanese starter Hisashi Iwakuma, grabbed Edwin Encarnacion off the waiver wire, and traded for David DeJesus. It's evident that Billy Beane doesn't think his team is very far away, and Beltre could be a big part of Oakland's future success.

Another report says that the Red Sox will not exceed four years and $52 million for Beltre. If that's true, and if reports of Oakland's offer are true, then Beltre could ultimately end up having to choose between maximum contract duration and maximum playoff odds.