Fantasy baseball stock watch - Week 15

Maintaining your fantasy baseball roster can be a daunting task with all of the variables to keep track. Thank goodness for this weekly Yahoo Sports cheat sheet of players to keep and players to drop. Find out whose stock is going up and whose stock is plummeting this week.

Oakland Athletics' Jeff Samardzija works against the Toronto Blue Jays in the fourth inning of a baseball game Sunday, July 6, 2014, in Oakland, Calif. (AP Photo/Ben Margot)
Trade costs Samardzija chance for All-Star outing
Oakland Athletics' Jeff Samardzija works against the Toronto Blue Jays in the fourth inning of a baseball game Sunday, July 6, 2014, in Oakland, Calif. (AP Photo/Ben Margot)
BOSTON, MA - MAY 2: Dan Straily #67 of the Oakland Athletics throws in the first inning against the Boston Red Sox at Fenway Park on May 2, 2014 in Boston, Massachusetts. (Photo by Jim Rogash/Getty Images)
Oakland Athletics v Boston Red Sox
BOSTON, MA - MAY 2: Dan Straily #67 of the Oakland Athletics throws in the first inning against the Boston Red Sox at Fenway Park on May 2, 2014 in Boston, Massachusetts. (Photo by Jim Rogash/Getty Images)

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