Speaking to the Herald prior to the opening round of Super Rugby Aotearoa, Jacobson said it had been the first time in his young career that he had been hit by a string of injuries.
"Before last year, the longest I had been out for was maybe three or four weeks with an ankle," Jacobson said.
Jacobson is facing a rehabilitation process of up to six weeks, leading to his unavailability for the remainder of the Chiefs' campaign.
As a result, the 23-year-old has only been able to feature in 11 matches for the Chiefs over the past two seasons.
Jacobson featured in all 160 minutes of the Chiefs' first two games in Super Rugby Aotearoa, and looked as though he hadn't missed a step in his time out of the game.
With Jacobson ruled out, Chiefs coach Warren Gatland will be hoping at least one of Sam Cane (back), Mitchell Brown (neck) or Mitchell Karpik (back) will be ready to play when the side meet the Crusaders on Sunday afternoon. Cane and Karpik have both missed the opening two rounds of the season, while Brown was injured early in the Chiefs' round-one match against the Highlanders.