Farquhar was designated for assignment following Saturday's win over the Athletics, freelance Tampa Bay writer Roger Mooney reports.
Though he'll be bumped from the 40-man roster, Farquhar is expected to remain with the organization and report to Triple-A Durham on Monday. The former Mariners closer was recalled from Durham earlier Saturday, but didn't appear in the game against the Athletics after starter Matt Andriese went the distance. Farquhar has a 3.38 ERA and 1.68 WHIP over six appearances with the Rays this season.