The San Francisco 49ers did indeed take a look at a defensive tackle on Tuesday, but have not as yet made a move to fill a spot left vacant by injury.The 49ers worked out Kyle Love, who started 25 games over the past two seasons for New England. San Francisco needs depth at the defensive-tackle position with Ian Williams out for the year with a broken ankle -- and could turn to Love at some point.The 49ers did make two moves Tuesday, signing fullback Owen Marecic and reaching an injury settlement with defensive tackle Will Tukuafu.