Yes.  Sanctioned ALL/ABR all-star activities are considered to be part of the spring ALL/ABR season.  The sanctioned all-star activities of these leagues typically begin in mid-June and run through early to mid-July.  ATB players are expected to rejoin their teams immediately at the end of the sanctioned all-star activities. Note that some leagues combine their all-star program with a travel program, and require all-star team members also to participate on a travel team.  As noted above, it is not possible for players to play for both ATB and a second travel baseball program, even if that second travel baseball program participates in sanctioned all-star activities during a portion of its season.