WASHINGTON — Two brief updates on a few $20 million arms:

Hours before Friday's first pitch, Roy Halladay walked to left field at Nationals Park. He was absent Thursday, one day after a disastrous eight-run outing, to tend to a personal matter.

He was back at work Friday and threw a bullpen session without problem. Halladay will start Monday, as expected, against the Mets. Halladay's one-day leave was not injury related. He informed the team a day before his start he would need to leave Thursday.

Cliff Lee will throw another bullpen session Saturday, pitching coach Rich Dubee said. If all goes well, he could slide back into the rotation Wednesday.

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