12:49 PM - PJ Poulin (Wsh) will serve as the Nationals' opening pitcher for Sunday's game against the Brewers, Mark Zuckerman of NatsJournal.com reports.

10:39 AM - PJ Poulin (Wsh) will serve as the Nationals' opening pitcher in Friday's game against the White Sox, Mark Zuckerman of NatsJournal.com reports.

10:20 AM - PJ Poulin (Wsh) will serve as the Nationals' opening pitcher for Sunday's game against the Giants, Mark Zuckerman of NatsJournal.com reports.

3:00 PM - PJ Poulin (Wsh) will serve as the Nationals' opening pitcher for Tuesday's game in Pittsburgh, Mark Zuckerman of NatsJournal.com reports.

10:47 AM - PJ Poulin (Wsh) (1-0) pitched a perfect eighth inning Friday to record his first win of the season in the Nationals' 7-3 victory over the Brewers.

1:26 PM - PJ Poulin (Wsh) has claimed a spot in the Nationals' Opening Day bullpen, Jessica Camerato and Paige Leckie of MLB.com report.

9:26 AM - PJ Poulin (Wsh) struck out one in a perfect 11th inning Saturday to record his first career save in a 5-3 win over the Mets. He struck out one.

12:14 PM - PJ Poulin (Wsh) (1-1) picked up the win over the Phillies on Friday, striking out three over two perfect innings of relief.

11:31 AM - PJ Poulin (Wsh) Nationals will recall Poulin from Triple-A Rochester, Spencer Nusbaum of Washington Post reports.

5:47 PM - PJ Poulin (Wsh) Nationals claimed Poulin off waivers Sunday.