Dalglish started with Jamie Carragher, Daniel Agger and Martin Skrtel at Stamford Bridge and three effectively shut out the Blues for 90 minutes.
Carragher in particular was simply superb on his return from injury and Keown feels it was due to Dalglish's strategy of playing three centre-backs.In comments reported on Liverpool's official website, Keown said: One of Kenny Dalglish's masterstrokes against Chelsea was playing a back three - and no-one relished that more than Jamie Carragher.
"It meant he could fully commit to tackles and one-on-ones while knowing there was cover from Martin Skrtel and Daniel Agger.
"It made him more positive in his defending. That is sometimes not the case in a back four and at times, Carragher has had Glen Johnson bombing forward and been a bit exposed. The older Carragher gets, the more he will appreciate the help.
