The Washington Nationals reinstated Bryce Harper from the 15-day disabled list after the star outfielder missed 59 games because of a torn ligament in his left thumb.

The team made the move before Monday night’s game against Colorado. It was Bryce Harper bobblehead night at Nationals Park. To make room for Harper, the Nationals optioned left-handed reliever Xavier Cedeno to Triple-A Syracuse.

SUSPENSION — Baltimore Orioles third baseman Manny Machado began serving a five-game suspension Monday, nearly three weeks after Major League Baseball initially levied the sentence and five days after his appeal hearing. Machado was suspended and fined on June 10 for intentionally throwing his bat on the field during an at-bat in Baltimore’s game against Oakland on June 8.

BACK FROM DL — The Minnesota Twins reinstated third baseman Trevor Plouffe and utilityman Eduardo Nunez from the disabled list, putting both of them right back in the lineup for the series opener against Kansas City. Plouffe and Nunez each missed 14 games after their injuries June 14 at Detroit. Plouffe hurt his rib cage, and Nunez, who played in four games on a rehab assignment with Triple-A Rochester, strained his right hamstring.

MENTOR — Manny Ramirez has been called everything from a World Series MVP to a cheater. The disgraced slugger is hoping to add “mentor” to his resume. The 42-year-old Ramirez, a two-time champion with Boston and a two-time offender of Major League Baseball’s rules against performance-enhancing drugs, joined the Triple-A Iowa Cubs as a player/coach after signing with Chicago in late May. Ramirez is expected to play one or two times a week for the organization’s top affiliate in Des Moines. But Ramirez’s biggest responsibility will be to work with the Cubs’ most promising prospects.

OBITUARIES — Frank Cashen, the general manager who wore a signature bow tie and fashioned a New York Mets team that rollicked its way to the 1986 World Series championship, died Monday. The team said he was 88. He died at Memorial Hospital in Easton, Md., after a short illness, the Mets said. … Bobby Castillo, a former Los Angeles Dodgers and Minnesota Twins pitcher credited with teaching Fernando Valenzuela how to throw a screwball, died Monday in a Los Angeles hospital after a battle with cancer, the team announced. He was 59.

AROUND THE BASES — Former major-league pitcher Joel Pineiro was suspended for 50 games after testing positive for a banned stimulant. The 35-year-old Pineiro is a free agent. … The Colorado Rockies’ beleaguered starting rotation took another blow as right-hander Jhoulys Chacin was placed on the 15-day disabled list with an inflamed shoulder. … The Kansas City Royals signed 42-year-old outfielder Raul Ibanez, nine days after he was released by the Los Angeles Angels.