NET
18 The three sons of Zeruiah were there—Joab, Abishai, and Asahel. (Now Asahel was as quick on his feet as one of the gazelles in the field.)
Darby
18 And there were three sons of Zeruiah there, Joab, and Abishai, and Asahel. Now Asahel was swift of foot, as one of the gazelles that are in the field.
KJV
18 And there were three sons of Zeruiah there, Joab, and Abishai, and Asahel: and Asahel [was as] light of foot as a wild roe.