Iloka was released just last month by the Cowboys. The eighth-year veteran appeared in all 16 games for the Vikings in 2018 but recorded just 16 tackles as a reserve. McDonald was released by the Dolphins in August after recording a career-high three interceptions for Miami last season. Either player would have big shoes to fill after Neal tore his Achilles this past Sunday against the Colts. The team officially placed Neal on injured reserve Tuesday.