2:44pm: Talks between the Nationals and Phillies are “very complicated” and the sides still have plenty to work out, Jim Bowden of ESPN.com tweets. Papelbon is still likely to be sent to D.C., but there are “hurdles” to be dealt with, Jayson Stark of ESPN.com tweets.

11:53am: A source tells Jim Salisbury of CSNPhilly.com that Papelbon “will be traded” at the deadline.

10:31am: The Nationals are making progress on a deal that would bring closer Jonathan Papelbon to D.C. from the rival Phillies, Ken Rosenthal of FOX Sports reports on Twitter. It’s unclear how far off the teams are from reaching agreement, let alone what kind of return is under contemplation.

There had been indications that Papelbon’s market was cooling, but it seems that action has kicked back into gear in recent days. Jim Salisbury of CSNPhilly.com tweets that he’s been left with the impression that the team is confident in getting some kind of deal done involving the controversial closer.

With Philadelphia reportedly amenable to covering some of Papelbon’s costs — which include a $13MM salary this year and a $13MM option for 2016 that will soon vest — he’s a good fit for a Nationals team that is said to be disinclined to absorb salary in the middle of the year. But Philly’s willingness to pay down some obligations also makes Papelbon palatable to other clubs. MLB.com’s Todd Zolecki noted yesterday that the Blue Jays and Cubs have also expressed keen interest in the veteran righty.