By Tyler Dunne The tight end position was evolving. Falcons offensive coordinator Mike Mularkey wasn’t having it. And on what should have been a celebratory Sunday afternoon 13 years ago, things almost came to a bloody head. Adapted excerpt from The Blood and Guts: How Tight Ends Save Football ©2022 Tyler Dunne and reprinted by permission from Twelve Books/Hachette Book Group. Tony Gonzalez wanted to slug his own coordinator directly in the jaw. He’d had enough. He was ready to take on Mike Mularkey. The day this tight end great—perhaps the greatest ever—missed out on his one thousandth career…