The Hamilton Tiger-Cats announced a series of transactions Saturday, including signing American defensive backs Caesar Williams and Tony Collier. Williams, 24, most recently spent time with the National Football League’s Los Angeles Rams (2022) during training camp. The 6’0, 188-pound native of Grand Prairie, Texas played 48 games over five seasons at the University of Wisconsin (2016-22), registering 100 total tackles, 5.5 tackles for loss, five interceptions, 27 passes defensed and one forced fumble. Collier, 24, played 27 games over three seasons at the University of New Mexico (2019-22), registering 55 total tackles, 1.5 tackles for loss, and four passes…