What happened: The permanent transfer includes a club option for the 2029-30 season. Sieb arrives after spending two seasons on loan from Bayern Munich.
Why it matters: The international-slot designation affects LAFC's roster flexibility as league play resumes Saturday. His Bundesliga experience adds another long-term option to the attack.
By the numbers: Sieb recorded five goals and three assists in 62 appearances across all competitions during his two-season loan. He previously produced 17 goals and four assists in 66 matches over two seasons with another German club.
What to watch: Sieb must receive his International Transfer Certificate and P-1 visa before being added to the roster. His first match availability will depend on that process.