Minor Moves: Humber, De Los Santos, Richmond

Here are today's minor moves from around the league…

• Astros pitcher Philip Humber has cleared waivers and has been outrighted to Triple-A Oklahoma City, according to Chris Cotillo of CLNSRadio.com (via Twitter).  MLBTR has learned that the right-hander has until Friday to accept the assignment or elect free agency.  Humber was designated for assignment earlier this week after posting a 9.59 ERA with 5.0 K/9 and 3.8 BB/9 in seven starts and two relief appearances.
• MLB.com's Corey Brock tweets that the Padres have requested unconditional release waivers on Fautino De Los Santos, confirming an earlier tweet from Chris Cotillo of CLNS Radio. De Los Santos, 27, was designated for assignment over the weekend. He made only two appearances for Triple-A Tucson this season due to an injury but has a 4.21 ERA and 46 strikeouts in 36 1/3 innings at the Major League level — all coming with the A's. His release will become official on Thursday.
• The Rangers have signed right-hander Scott Richmond to a minor league contract, according to Jeff Sullivan of the Fort Worth Star-Telegram (Twitter link). The 33-year-old Canadian hurler has a 5.27 ERA, 7.4 K/9 and 3.2 BB/9 in 169 big league innings for the Blue Jays. Richmond, who was pitching in Korea prior to this signing, was on Team Canada's roster for the 2009 World Baseball Classic. He will report to extended Spring Training, according to Sullivan.

Zach Links contributed to this post.