MATCH FACTS

■■Chelsea have won each of their last seven away games in all competitions, their jointlongest winning run on the road in their history, alongside seven-match streaks in April 1989 and November 2019.

■■This was Chelsea’s joint-biggest top-flight away win, alongside 6-0 victories at Barnsley (August 1997) and Wigan (August 2010). For Southampton, their only heavier home defeat in their Football League history was a 9-0 loss to Leicester in October 2019. ■■Southampton have lost three consecutive Premier League games at St Mary’s, this after having lost only three of their previous 20 home league matches beforehand (W8 D9). ■■Chelsea took a 4-0 lead in the 31st minute of this game, the earliest any side has scored four from the start of a Premier League match away from home since Chelsea themselves in October 2011 at Bolton (27th minute).

■■This was the 19th time that Chelsea have scored 6+ goals in a single Premier League game, the joint-most of any club (level with Manchester City). Southampton shipped 6+ goals in a Premier League match for a 10th time, the outright most of any side.

■■Chelsea’s Mason Mount both scored and assisted in a single Premier League game for a fifth time this season; no player has done so more in 2021-22 (level with Mo Salah).

■■Mount has been directly involved in 18 Premier League goals this season (10 goals, 8 assists); the only English player to have a hand in more in a single season in the competition for Chelsea is Frank Lampard (five times).