Knicks sign Cato, waive four, exercise options on three

NEW YORK -- The New York Knicks signed veteran center Kelvin Cato on Wednesday and waived four players, trimming the roster to 15.

The Knicks also exercised third-year options on Channing Frye, Nate Robinson and David Lee.

Cato finished last season with Detroit after he was dealt in the trade for Darko Milicic in February. The 32-year-old center played for four teams in his nine-year career, averaging 5.6 points and 5.4 rebounds.

Nikoloz Tskitishvili, the fifth overall pick in the 2002 draft, was waived along with Elton Brown, Milone Clark and Paul Miller.