Del Rosario has had to make a sharp adjustment in his pre-fight preparation, as he initially was slated to fight Gabriel Gonzaga. But the UFC was forced to scramble the fight card after Alistair Overeem tested positive for an elevated testosterone level.
Overeem had been scheduled to fight UFC heavyweight champion Junior Dos Santos in the main event.
So when the dust settled, Frank Mir was given the title shot against Dos Santos, and Gonzaga was moved to fight Roy Nelson.
That opened the door for Miocic to fight Del Rosario, who had to switch gears.
"It definitely changes training a little bit," said Del Rosario, who suffered multiple herniated discs in the car accident last April. "You go from fighting a 255-pound black belt in jiu jitsu and a veteran in the UFC, to Miocic.
"But I can't overlook him, he'll definitely be a tough opponent. He seems real athletic, he was a Golden Glove boxer and a (NCAA) Division I wrestler. It's going to be an exciting fight."
Del Rosario is confident he belongs in the discussion of potential UFC heavyweight champions. He has sparred with Dos Santos as well as middleweight champ Anderson Silva and held his own.
But climbing the ladder to a title shot requires strategy. Sometimes patience along the way is the best way to go, holding back and facing the best in the division only after taking care of lesser fighters first.
Del Rosario doesn't have that luxury, and in his case, ring rust also could be a factor. When he steps into the Octagon on May 26, it'll have been 15 months since his previous fight.
So maybe getting Miocic instead of Gonzaga is a good thing, though it wouldn't be accurate to call Miocic a "tune-up" fight.