Here are a few natural ways to rewrite this in Swedish, depending on the exact style you want:
Most natural sports headline:
Bolognas tränare Holm sparkad efter fyra matcher
Alternative phrasing (more active):
Holm får sparken som Bolognatränare efter fyra matcher
Alternative phrasing (focusing on the club):
Bologna sparkar tränaren Holm efter fyra matcher
All three are correct, but the first one is the most typical Swedish newspaper headline style.
