The Cubs have engaged in serious talks with the Athletics on a potential deal involving pitchers Jeff Samardzija and Jason Hammel, FOX Sports reports Friday.

The Cubs have been unable to lock Samardzija down with an extension and are listening to offers leading up to the July 31 trade deadline. Samardzija is 2-7 with a 2.83 ERA over 17 starts (108 innings). Hammel is 8-5 with a 2.98 ERA and a 1.02 WHIP over 17 starts (108 2/3 innings).