Does the link with trivial knot group trivial?

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I know that if a the knot group of a classical knot is isomorphic to the infinite cyclic group, then the knot is unknotted. How about the link, is this result also valid for links. In other words, if the knot group of a link is $\mathbb{Z}^n$, then does this imply that the link is unknotted, where n is the number of components?