Atlanta Hawks' Joe Johnson (2) shoots over Boston Celtics' Paul Pierce (34) during the first quarter of Game 4 of an NBA basketball first-round playoff series, in Boston on Sunday, May 6, 2012. (AP ... more 

Atlanta Hawks' Joe Johnson (2) shoots over Boston Celtics' Paul Pierce (34) during the first quarter of Game 4 of an NBA basketball first-round playoff series, in Boston on Sunday, May 6, 2012. (AP Photo/Michael Dwyer) less