At the start of the year, Jakob Ingebrigtsen was breaking records and winning world titles. But now an Achilles injury has forced him to take things more slowly.

As he moves at a snail’s pace around the pool at his home in Sandnes, Norway, Ingebrigtsen is quietly plotting his return to the running track. An Achilles injury has kept him out of action of ...

For now, the overarching ambitions for Ingebrigtsen’s running career remain the same. “As an individual athlete, I want to be recognized as the best runner to exist,” he says, adding: “The ...