Weeks was designated for assignment on Saturday, with the team initially bringing up reliever Danny Farquhar to bolster a bullpen that needed help after several short outings from starters. Farquhar was optioned to Tacoma on Sunday after pitching in two games, and Jones now takes his spot on the 25-man roster.
Jones, a fourth-round Draft pick out of Long Island University in 2009, had the second-most stolen bases of any rookie in the Majors last year behind Billy Hamilton of the Reds, and his 96.