  We prove that any uniformly elliptic Weingarten (topological) sphere in S2xR
must be congruent to the canonical example associated to the Weingarten
equation. The result is obtained by proving that rotational uniformly elliptic
Weingarten surfaces in S2xR have bounded second fundamental form together with
a Hopf type result by J. A. G\'alvez and P. Mira.
