With a last-eight tie in the Champions League beginning on Wednesday, we have collected together the big numbers ahead of another meeting between the Blues and the Portuguese club...
Chelsea vs Porto head to head
The other was in the 2006/07 round of 16 when Chelsea progressed 3-2 on aggregate.
Our previous meetings
2004/05 Champions League group stage
Home W 3-1
Away L 1-2
2006/07 Champions League round of 16 first leg
Away D 1-1
Home W 2-1
2009/10 Champions League group stage
Home W 1-0
Away W 1-0
2015/16 Champions League group stage
Away L 1-2
Home W 2-0
Our last away meeting with Porto
PORTO 2 CHELSEA 1
Champions League Group G, Estadio do Dragao, 29.09.15, 7.45pm
Porto (4-3-3): Casillas; Maxi Pereira, Maicon (c), Marcano, Martins Indi; Neves (Evandro 77), Danilo, Imbula; Andre Andre (Layun 80), Aboubakar, Brahimi (Osvaldo 86)
Unused subs: Helton, Corona, Tello, Bueno
Booked: Martins Indi, Marcano, Danilo, Imbula
Scorers: Andre Andre 39, Maicon 52
Manager: Julen Lopetegui
Chelsea (4-2-3-1): Begovic; Ivanovic (c), Zouma, Cahill, Azpilicueta; Ramires (Matic 72), Mikel (Hazard 61); Pedro (Kenedy 72), Fabregas, Willian; Diego Costa
Unused subs: Blackman, Terry, Baba, Loftus-Cheek
Booked: Cahill, Azpilicueta, Matic
Scorer: Willian 45+2
Manager: Jose Mourinho
Referee: Antonio Mateu Lahoz (Spain)
Porto’s biggest home win in the Champions League
17/09/14 - Porto 6-0 BATE Borisov - group stage
Chelsea’s biggest away win in the Champions League
20/10/1999 - Galatasaray 0-5 Chelsea - first group stage
25/11/2014 - Schalke 0-5 Chelsea - group stage
We played PSG on the last occasion, in 2013/14 when Jose Mourinho was in charge, and we progressed to the semi-finals on away goals having drawn the tie 3-3 on aggregate.
This is our 10th quarter-final in the competition. We have progressed in seven of the previous nine.
Chelsea have reached the Champions League quarter-final without losing a game for only the second time. 2007/08 was the other when we went on to lose the final in Moscow.
The loss at Bayern Munich last season is our only defeat in 15 European away matches (11 wins, three draws).
Our record against Portuguese clubs is 10 wins, one draw and two defeats. Away from home we have won three, drawn one and lost two (both to Porto).
Chelsea have won all three knockout games against Portuguese sides; Porto in 2006/07 and Benfica 2011/12 (both in the Champions League quarter-finals) and the Europa League final against Benfica in 2013.
Chelsea are looking to win five consecutive away games in the Champions League proper for the first time since a run of five between September 2003 and April 2004.
We are unbeaten in this season’s Champions League.
Only Man City (one) have conceded fewer goals in the Champions League this term than Chelsea (two), while only Pep Guardiola’s side (seven) have kept more clean sheets than the Blues (six).
Champions League scorers
Giroud 6 (1 pen), Werner 3 (3 pens), Hudson-Odoi 2, Ziyech 2, Abraham 1, Emerson 1, Jorginho 1 (pen), Pulisic 1.
Taca de Portugal - winners
Taca da Liga - runners-up
Champions League - third qualifying round
Europa League - round of 32
Top scorer all competitions: Soares 19
Taca de Portugal - semi-finals
Taca da Liga - semi-finals
Supertaca - winners
Champions League - quarter-finals
Top scorer all competitions: Sergio Oliveira 19
This is Porto's seventh appearance in the Champions League quarter-finals. They have not won a last-eight tie since claiming their second European Cup under future Chelsea manager Jose Mourinho in 2004. They have lost the last three to Man Utd in 2009, Bayern Munich in 2015 and Liverpool in 2019.
Only Real Madrid and Barcelona (both 25) have appeared in more Champions League campaigns than Porto (24).
Porto have lost three of their past 10 home Champions League matches, winning five of them.
They have two wins from their past 11 knockout-stage matches in the Champions League, losing three quarter-final games in that run.
Porto's record in two-legged ties with English clubs is three wins and nine defeats. They have lost the last six, most recently against Liverpool at this stage two seasons ago and have not beaten English opposition in a knockout tie since Mourinho's side eliminated Man Utd in the 2003/04 Champions League round of 16.
They have only lost to Real Madrid more times (six) in the Champions League than they have against Chelsea (five).
A 95th-minute Toni Martinez goal secured all three points for Porto against seventh placed Santa Clara on Saturday. They remain second in the Primeira Liga, eight points behind leaders Sporting Lisbon.
Porto are unbeaten in the league since 30 October. In the 34 games in all competitions since then they won 24 and lost three (two in the League Cup and Juventus in the Champions League).
Pepe (38 years 40 days) is set to become the oldest outfield player to appear in a Champions League quarter-final since Ryan Giggs back in April 2014 (40 years 123 days v Bayern Munich).
Malang Sarr could be the second Chelsea loan player to play against us in the Champions League following Thibaut Courtois for Atletico Madrid in the 2013/14 semi-final. His last appearance for Porto was in the last round of the Champions League at Juventus on 9 March.
Sergio Conceicao has never managed a team against Chelsea although he has played against us twice for Lazio in the Champions League in 1999 and 2003, winning one and losing one.
Group C results
Man City (a) L 1-3
Olympiacos (h) W 2-0
Marseille (h) W 3-0
Marseille (a) W 2-0
Man City (h) D 0-0
Olympiacos (a) W 2-0
Round of 16
Juventus (h) W 2-1
Juventus (a) L 2-3
4-4 on aggregate, Porto won on away goals
Champions League scorers
Oliveira 5 (3 pens), Diaz 2, Marega 2, Otavio 1 (pen), Sanusi 1, Taremi 1, Uribe 1, Vieira 1.
Porto’s Round of 16 second leg line-up
Tuesday 9 March
Juventus 3 Porto 2 (Porto won on away goals after extra time)
Team 4-4-2: Marchesin; Manafa, Mbemba, Pepe (c), Zaidu (Diaz 71); Corona (Leite 118), Oliveira (Loum 118), Uribe (Grujic 90), Otavio (Sarr 62); Marega (Martinez 106), Taremi
Sent off: Taremi 54 (two yellow cards)
Booked: Otavio, Oliveira, Mbemba
Scorers: Oliveira 27 (pen), 115
Chelsea: Jorginho 3, Mount 3, Kovacic 2, Ziyech 2, Azpilicueta 1, Chilwell 1, Havertz 1, Kante 1, Pulisic 1.
Referee and VAR
VAR: Pawel Gil (Poland)
Referee Slavko Vinci’s only previous Chelsea match was a 3-0 Round of 16 victory at the Bridge against Dynamo Kiev on the way to winning the Europa League in 2018/19.