Complex sentence: Horst found most success with partner Florian Gosch on the FIVB World Beach Volleyball Tour, however a knee injury forced Florian Gosch into early retirement in the fall of 2010.
Split into simpler sentences: Horst found most success with partner Florian Gosch on the FIVB World Beach Volleyball Tour. A knee injury forced Florian Gosch into early retirement in the fall of 2010.