Michael Clarke is poised to sign a three-year contract with bat manufacturer Spartan Sports in what is likely to be the first of a series of deals that will ensure his 329 not out against India is remembered as the multimillion-dollar innings.

The Sun-Herald understands Clarke has a handshake agreement with Spartan, a family-owned sporting goods business, after he ended his 18-year association with Slazenger days before he spearheaded Australia to a comprehensive second Test victory in front of his home crowd at the SCG.

Set to reap dividends after his stellar innings in Sydney ... Michael Clarke. Credit:Getty Images

It is believed the plan is for Clarke's bat, and potentially other merchandise, to be emblazoned with his own ''MC'' logo, just as the great Sachin Tendulkar has his own ''ST'' brand, which adorns his adidas-sponsored bats.

Spartan also has a licensing agreement with Cricket Australia and factories in India, where its bats are manufactured.