ARLINGTON -- On his weekly radio show, general manager Jon Daniels said the club is considering placing Mike Napoli on the disabled list with a back strain. Napoli did not play Sunday because of back spasms, and Daniels said he has not had significant relief from the pain.

Daniels said the Rangers were weighing whether to give Napoli several more days to rest the back or add a player. The situation is clouded because the Rangers will play a series at Washington under NL rules over the weekend. With the possibility of increased use of pinch hitters and double switches, it's difficult to go with a short bench.

The Rangers can backdate a DL move for Napoli to Sunday, which would mean he'd be eligible to return as early as June 14. If the Rangers give him more time to rest before placing him on the DL, they can only backdate the DL placement three days from when the move is made.

Briefly

-- The Rangers will give Tyson Ross a fourth rehab start this week, meaning he won't join the starting rotation for the series at Washington.

-- Daniels said the Rangers have narrowed their options for trading Sam Dyson to "two or three teams," and the club expects to have a deal done by Thursday when the club's seven-day window for making a move expires.

-- LHP Cole Hamels (strained oblique), who threw off a mound Sunday for the first time since his May 3 injury, is tentatively scheduled to throw again Wednesday. If all goes well, he could face hitters in a live batting practice session this weekend.