The Clippers have signed free-agent center Joakim Noah, giving them an aggressive, physical presence with playoff experience. The 35-year-old two-time All-Star played 42 games with Memphis last season after agreeing to a buyout with the New York Knicks. Noah attended the Clippers' loss to the Lakers on Sunday at Staples Center, where he was warmly received as he made his way through the crowd and sat in the stands.