Situs Inversus

Jack Muller was my poppa. He had the titular condition.
They found an ambidextrous heart surgeon for his triple-bypass.
Several years later, Shane Warne bowled Graham Gooch around his legs.
Soon after, Poppa taught me how to bowl a leg break.
And then, how to bowl a wrong'un.
In each case, the master's discourse emerges where difference begins.