Premier League champions Chelsea will not underestimate Southampton on Saturday as they aim to keep up the pressure on the sides around them in the top four, goalkeeper Thibaut Courtois has said.
Chelsea are third in the league, 14 points adrift of leaders Manchester City and three behind second-placed Manchester United after 17 games.
However, Courtois maintains that the London side must continue winning to either chase down City or at least finish second.
'It's a tough game, Southampton drew against Arsenal and it's always difficult against them home or away,' Courtois told the club's website.