MATCH FACTS
Head-to-head- Chelsea are unbeaten in their last 16 league matches against Bolton (W13, D3), winning the last seven. They also won a Carling Cup tie against Wanderers in 2009, meaning they are unbeaten in 17 matches in all competitions (W14, D3), winning the last eight.
- Bolton's last victory against Chelsea was in December 2003 when John Terry scored a 90th-minute own goal at Stamford Bridge.
- Defeat to Napoli means Chelsea have won one of their last seven games in league and cup (W1, D4, L2).
- The Blues have failed to win their last four league games, and have recorded just two victories in 10 top-flight matches.
- If Frank Lampard nets on Saturday he will become the first player to score at least 10 Premier League goals in nine successive seasons. Wayne Rooney has reached double figures in eight consecutive seasons at Manchester United (including the current campaign), while Thierry Henry also managed the feat during his eight full seasons with Arsenal.
- Lampard is one short of 150 career league goals, and a double short of 150 in the Premier League.
- Fernando Torres has failed to score in his last 22 games, including two appearances for Spain.
- The Blues' next win will be their 2,000th victory in all competitions.
- Didier Drogba is two shy of 100 Premier League goals. He would become the first African to reach that landmark.
- Four of Bolton's six league wins this season have come away from home.
- They have lost 17 of the 18 league games this season when they conceded the opening goal. The exception was their 2-1 win at Everton on 4 January.
- Wanderers have won four of their last seven games in league and cup.
