Rugby: Umaga injured in South Africa

Tana Umaga. Photo / Getty Images

Veteran midfield back Tana Umaga has been ruled out of the Chiefs' two Super 15 rugby matches in South Africa after picking up a calf injury at training in Johannesburg today.

The former All Blacks captain, who missed taking his place on the bench in the Chiefs' 34-16 loss to the Crusaders in Mt Maunganui on Friday night, is on his way back to New Zealand.

Jackson Willison will replace the 37-year-old Umaga in the squad for their matches against the Lions in Johannesburg on Sunday morning (NZT) and the Bulls in Pretoria a week later.

- NZPA