Driveshaft assembly for a marine engine assembly

A marine engine assembly for a watercraft comprising:

• a housing;
• an internal combustion engine disposed in the housing, the internal combustion engine having a crankshaft;
• a driveshaft assembly driven by the crankshaft, the driveshaft assembly comprising:
• a first driveshaft having a first end and a second end, the first end of the first driveshaft being operatively connected to the crankshaft;
• a second driveshaft having a first end and a second end, the first end of the second driveshaft being connected to the second end of the first driveshaft, the first end of the second driveshaft being rotationally fixed relative to the second end of the first driveshaft,
• the first and second driveshafts being concentric,
• one of the first and second driveshafts being disposed at least in part inside another one of the first and second driveshafts,
• the second driveshaft extending from its first end toward the first end of the first driveshaft;
• and
• a third driveshaft having a first end and a second end, the first end of the third driveshaft being operatively connected to the second driveshaft;
• and
• a propulsion device operatively connected to the second end of the third driveshaft.