Jacob Tamme Clay Harbor and Tony Moeaki are just a few names that could be available. Whether the Patriots' interest in tight ends has anything to do with their expectations on Rob Gronkowski's (back surgery) recovery is impossible to say. It's also possible they're not pleased with Daniel Fells and Jake Ballard behind Zach Sudfeld. The Boston Herald reported Monday that Gronk remains "right on schedule" for a return in mid-September.