The number of teams pursuing Zach Britton in a trade with the Baltimore Orioles is "expanding," according to a report.

The Houston Astros, Chicago Cubs, Los Angeles Dodgers, New York Yankees, Atlanta Braves, Colorado Rockies and Milwaukee Brewers are among those in the mix.

The Orioles would reportedly prefer to conclude negotiations by the middle of the week.

Another report claims the Astros are "all in" on Britton.