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Injured All Blacks lock Ali Williams is searching for the best soup in New Zealand.

Williams, who broke his jaw in the second rugby test against France in Wellington a week ago, can only eat liquified food for the next two weeks following surgery.

He issued a plea to the public today for soup recipes.

"I'm finding it a bit tricky, I'm going to have to keep it going somehow," he said in a video on the All Blacks' website.

"The only thing that can keep me going is by eating soup, or sucking soup."

Through gritted teeth, Williams said he would judge the premier meal and the winner would receive a signed All Blacks rugby ball.

Williams' injury is expected to sideline him from rugby for six weeks.