NL East Notes: Marlins, Cishek, Phils, Strasburg, Fister

Despite what the standings say, the Marlins are not yet entertaining the idea of selling, MLB.com’s Joe Frisaro reports. The club is not interested in moving core players, says Frisaro, noting that dealing third baseman Martin Prado — who is under contract for next year as well — does not make sense, at least at present.

Here’s more from the NL East:

Skipper Dan Jennings says that the Marlins‘ decision to option Steve Cishek was motivated by a desire to get his mechanics in order outside the big league spotlight, Frisaro reports. Noting that Cishek’s velocity has improved of late, Jennings said he expects a short minor league stint: “I don’t see this being a long-term deal at all. I think he…