Titus Davis -- who broke Antonio Brown's WR records at Central Michigan -- has died after battling a rare form of cancer.
He was only 27.
Titus -- older brother of Tennessee Titans wideout Corey Davis -- went public with his diagnosis in July, revealing he was suffering from a rare and aggressive kidney cancer called Renal Medullary Carcinoma.
He underwent chemotherapy to battle to illness -- but ultimately passed away on Wednesday. He's survived by his 2 sons.
Titus was a monster during his 4 years at Central Michigan from 2011 to 2014 -- racking up 3,700 receiving yards and 37 TDs during his career, setting school records in both categories.
He's the only player in college football history to have 8 or more touchdowns in four different seasons.
Titus signed with the Chargers as an undrafted free agent in 2015 -- where he was a member of the practice squad. He also spent time as a practice squad player with the NY Jets, Chicago Bears and Buffalo Bills.
Titus' former college coach Dan Enos issued a statement on Davis' passing -- saying he's "heartbroken."
"On the field, he was a phenomenal athlete and competitor. He was also a great friend and teammate to many."
"From the first moments we started recruiting him, we at CMU football knew he was something incredibly special. He was a joy to coach and to be around. My deepest sympathies are extended to his family during this difficult time."
RIP.