Papelbon throws simulated game; Nationals sign Latos

WASHINGTON (AP) Nationals closer Jonathan Papelbon has thrown a simulated game and is headed to Double-A Harrisburg for a rehab assignment.

Pabelbon says he threw around 30 pitches Wednesday before Washington hosted the New York Mets. The reliever is on the 15-day disabled list, sidelined since June 13 with a right intercostal strain.

Papelbon is 1-2 with a 3.28 ERA and 16 saves in 25 appearances. The next step for him involves pitching on consecutive days for Harrisburg beginning Friday.

In other news, Nationals manager Dusty Baker confirmed the team has signed veteran starter Mat Latos to a minor league contract.

Latos, who pitched for Baker in Cincinnati, was designated for assignment by the Chicago White Sox on June 9 with a 6-2 record and 4.62 ERA.