The Mariners sent a scout to watch David Phelps' recent Spring Training outing, George A. King III of the New York Post reports, while the White Sox and Brewers also had scouts on hand to watch the Yankees' catchers. King previously reported last week that the White Sox had their eyes on the Yankees' catching surplus and that the Yankees were scouting Brewers second baseman Rickie Weeks.
With the Yankees known to be looking for infielders, King speculates that Nick Franklin could be a target for the club, especially since Seattle is known to be exploring trades for the young second baseman. The M's are looknig to upgrade their pitching depth thanks to injuries to Hisashi Iwakuma and Taijuan Walker, though as King notes, it would take more than just Phelps to acquire Franklin.
It would be somewhat surprising to see the Yankees move Phelps given the club's lack of starting pitching depth. Phelps is competing with Michael Pineda and Adam Warren to be New York's fifth starter, and since Pineda hasn't pitched in a Major League game since 2011 and Warren has only three career starts over his two MLB seasons, the Yankees would have to be confident in both pitchers' development to send Phelps elsewhere. Phelps' advanced metrics (3.81 FIP, 4.03 xFIP, 3.91 SIERA) indicate that he pitched much better last season than his 4.98 ERA over 86 2/3 IP would indicate.
The Yankees have Francisco Cervelli, J.R. Murphy and Austin Romine competing to be Brian McCann's backup, and all could fit into reserve roles in Chicago or Milwaukee. The Sox could offer more regular time, as their catching mix of Josh Phegley, Tyler Flowers, Hector Gimenez and Rule 5 Draft pick Adrian Nieto isn't at all settled.
With Jonathan Lucroy firmly locked into the starting job in Milwaukee, the Brewers are only looking for a backup. If Weeks is a target, it's only a matter of how much of his $11MM salary the Crew will agree to absorb (King also suggests Aramis Ramirez as a trade possibility, but I doubt the Brewers would think to trade him unless they struggle during the season and fall out of the race).