The Detroit Tigers and Kansas City Royals are both in the market for a bat and appear to have demonstrated interest in Boston Red Sox' outfielder Daniel Nava, according to Nick Cafardo of the Boston Globe. Per Cafardo, Nava has yet to be placed on waivers by the Red Sox, but would likely be a hot commodity if made available.
The 31-year-old Nava is struggling at the plate this year after posting a 128 wRC+ and 2.8 WAR last season. In 254 plate appearances this season, Nava has hit just .248/.327/.310 with a 79 wRC+ and 1.5 WAR, largely due to some outstanding defense in the outfield (he has saved roughly 10 runs with his glove this season per defensive runs saved). Nava is arbitration eligible this offseason, but is under club control through the 2017 season.
The fact that the Royals are showing interest in adding Nava is no surprise. Nava would fit right in, either taking over the somehow-still-playing Raul Ibanez's spot in the lineup, or forming a platoon with Nori Aoki in right-field. Nava has traditionally hit better against right-handers (.806 career OPS versus right-handers, .587 against lefties), while Aoki has proven to be slightly more potent against southpaws in his career.
The Tigers are currently lacking in outfield depth with Austin Jackson now in Seattle and Andy Dirks on the DL. Right fielder Torii Hunter has also seen his production fall off dramatically over the past couple months, and Nava could be used to eat into Hunter's at-bats against righties, whom he is hitting just .257/.294/.438 against this year.
Even if Nava is placed on waivers, it's still a long-shot that he makes it to either Kansas City or Detroit (the Royals have priority due to them behind a half game behind the Tigers in the AL Central), as they are relatively low on the priority list, and a number of other teams may look to add him or block another team from acquiring him.