The Nationals signed Pilkington on Thursday to a minor-league contract that includes an invitation to spring training, Bobby Blanco of MASNSports.com reports.

Pilkington was outrighted to Triple-A Reno on Thursday, per the MLB transaction log.

Pilkington was designated for assignment by the Diamondbacks on Friday.

Arizona acquired Pilkington from Cleveland on Monday in exchange for cash considerations.

The Guardians designated Pilkington for assignment Wednesday, Joe Noga of The Cleveland Plain Dealer reports.

The Guardians recalled Pilkington from Triple-a Columbus on Tuesday, Ryan Lewis of the Akron Beacon Journal reports.

The Guardians optioned Pilkington to Triple-A Columbus following Tuesday's doubleheader versus the Tigers.

The Guardians recalled Pilkington from Triple-A Columbus on Tuesday, Mandy Bell of MLB.com reports.

Pilkington was optioned to Triple-A Columbus by the Guardians on Friday.

Pilkington has allowed five earned runs, 10 hits and four walks while striking out eight over 6.1 innings across three Cactus League appearances.