• Nationals left-hander Ian Krol made his Major League debut in the sixth inning on Wednesday. He gave up a leadoff double before striking out Daniel Murphy, David Wright and Lucas Duda in order.
• Recent callup Anthony Rendon batted sixth in Wednesday's lineup and made his first Major League start at second base. He went 1-for-4 with a double and a strikeout and looked comfortable in the field at second base. Rendon mostly played third at Double-A Harrisburg before being promoted over the weekend to Triple-A Syracuse, where he got more significant work at second.
• Nationals second baseman Danny Espinosa saw a hand specialist in Baltimore on Wednesday after being placed on the 15-day disabled list with a fractured right wrist. He had MRIs on both the wrist and his left rotator cuff, which was torn late last season.
"We're not going to share anything with you until we have a full assessment of his health -- wrist, shoulder," general manager Mike Rizzo said.
• Nationals first-base coach Tony Tarasco returned to the team Tuesday following the birth of his son, Jack, on May 27. After complications with the birth, a team spokesman said that both mother and son are healthy.