Gray threw 35 pitches Friday in a bullpen session at Fenway Park, all fastballs, Bobby Blanco of MASNSports.com reports.

Nationals manager Davey Martinez said Gray (elbow) threw about 35 pitches in Saturday's bullpen session, Bobby Blanco of MASNSports.com reports.

Gray (elbow) will throw a bullpen session Saturday, Andrew Golden of The Washington Post reports.

Gray (elbow) played catch from 75 feet Tuesday, Andrew Golden of The Washington Post reports.

Nationals manager Dave Martinez said Friday that Gray resumed playing catch from 60 feet last week, MLB.com reports.

Gray was placed on the 15-day injured list by the Nationals on Tuesday, retroactive to April 6, with a right flexor strain, Bobby Blanco of MASNSports.com reports.

Manager Dave Martinez on Sunday named Gray the Nationals' starter for Opening Day against the Reds on March 28, Mark Zuckerman of MASNSports.com reports.

Gray struck out five and walked two over three innings in Saturday's Grapefruit League game against the Red Sox, allowing one run on two hits.

Gray gave up two hits over two scoreless innings in Monday's Grapefruit League game against the Mets. He struck out five without walking a batter.

Gray (8-13) took the loss Tuesday, allowing one run on five hits and two walks over six innings against the Orioles. He struck out seven.