Sadler (shoulder) is scheduled to face live hitters next week in the Arizona Complex League, the team's official site reports.

Mariners general manager Justin Hollander said last week that he expects Sadler (shoulder) to be ready to resume pitching in games around the All-Star break, MLB.com reports. "He's made a lot of progress since we shut him back down, so he's feeling better, and we're hopeful that he will be back and be able to avoid a second surgical procedure," Hollander said of Sadler.

The Mariners reassigned Sadler (shoulder) to minor-league camp Sunday.

Sadler (shoulder) and the Mariners agreed Wednesday on a minor-league contract, Jon Heyman of the New York Post reports.

Sadler (shoulder) cleared waivers Wednesday and elected free agency.

Sadler (shoulder) was transferred to the 60-day injured list Wednesday, Ryan Divish of The Seattle Times reports.

Sadler (shoulder) was placed on the 10-day injured list Thursday.

Manager Scott Servais said Sunday that Sadler will undergo season-ending shoulder surgery, Ryan Divish of The Seattle Times reports.

Manager Scott Servais said Sunday that Sadler is dealing with shoulder soreness and will "be down for quite some time," Jesse Borek of MLB.com reports.

Sadler agreed to a one-year, $1.025 million contract with the Mariners on Tuesday to avoid arbitration, Robert Murray of FanSided.com reports.