Lewis Hamilton led a Mercedes 1-2 in Formula 1's opening practice session for the Las Vegas Grand Prix after overhauling team-mate George Russell at the chequered flag.Hamilton's 1m35.001s headliner was set at the close of the session, as he found 0.396s over Russell in a session defined by ever-improving track conditions as the Las Vegas Strip slowly rubbered in with continued running.Drivers ... Keep reading
