A car parked outside of Martinez's Oxnard, Calif. apartment which belonged to a member of the fighter's entourage was drenched with various colors of paint over the weekend.
Even more troubling, the fighter has been receiving death threats.
As a result of the aforementioned incidents Sergio Martinez Media Day, which was scheduled to take place on Tuesday in Ventura, Calif, has been cancelled.
"This past weekend Sergio received threats from an unknown source and the car in front of his home was vandalized," Lou Di Bella, Martinez's promoter, said according to USA Today.
"Unfortunately, until we have a security team in place, we are going to have to suspend any and all public and media appearances for Sergio, including the upcoming media day scheduled for tomorrow. We apologize for the inconvenience to the media and fans that have planned on attending tomorrow's event."
Are the events related to each other? And is it just a coincidence they have occurred just three weeks shy of of Sergio Martinez's mega bout?
On September 15th, the 37 year old Argentinian, regarded by many as the best middleweight in the world, will face his toughest test to date in rival Julio Cesar Chavez (46-0-1, 32 KO's), the WBC Middleweight Champion.
The winner may likely be catapulted into super stardom, perhaps joining Floyd Mayweather and Manny Pacquiao on boxing's highest pedestal.
A victory for Sergio Martinez, arguably boxing's best kept secret since 2009, would position him for eventual superfights against Miguel Cotto, Saul Alvarez and/or Floyd Mayweather Jr.
If Chavez wins, the 26 year old will be in-line for high-money bouts himself against fellow Mexican Saul Canelo Alvarez, Miguel Cotto and possibly lineal super middleweight champion Andre Ward further into the future.
Sergio Martinez is an awkward but highly-versatile ring technician who would pose a threat to any fighter from 154-168 lbs. He was arguably the most avoided fighter in the sport for nearly two years until WBC Middleweight Champion Julio Cesar Chavez Jr agreed to face him in September.
Is someone trying to throw Martinez off his game as he prepares for September 15th?