Outfielders Jarrod Dyson and Mitch Haniger, first baseman/outfielder Danny Valencia and starting pitchers Drew Smyly and Yovani Gallardo -- all acquired by trade this winter by general manager Jerry Dipoto -- will also be among the participants at the two-day gathering. Also taking part is lefty reliever Marc Rzepczynski, the team's biggest free-agent addition.
That group of newcomers will be joined by three key returners -- starting pitcher James Paxton, center fielder Leonys Martin and hard-throwing reliever Dan Altavilla -- as well as Dipoto and manager Scott Servais.