Here's the first test for the Boston Red Sox, the first chance for general manager Ben Cherington to demonstrate what his newfound commitment to "discipline" in player acquisitions truly means.

The Minnesota Twins placed catcher Joe Mauer on trade waivers Tuesday, according to a major-league source. The Red Sox not only have long-standing interest in Mauer, but also purged more than $275 million in contract obligations last week in their mega-deal with the Los Angeles Dodgers.

If the Sox truly intend to be more disciplined, as Cherington suggested after the team sent first baseman Adrian Gonzalez, right-hander Josh Beckett and left fielder Carl Crawford to the Dodgers, let's see where they will draw the line.