Tuesday's Champions league photos

CSKA Moscow 1-1 Real Madrid: Real Madrid's squad train at the Luzhniki stadium in Moscow, ahead of their last-16 Champions League match against CSKA Moscow, who have just resumed their domestic season after a two-month winter break

Cristiano Ronaldo gives Real Madrid the lead in the first half when CSKA Moscow's Zoran Tosic fails to clear Fabio Coentrao's cross from the left flank and Ronaldo rifles past goalkeeper Sergei Chepchugov with a thumping left-footed shot from inside the box to score his 36th goal in 35 matches

Defender Pepe (right) has been solid in defence for Real, making several key challenges to win possession, as CSKA's Seydou Doumbia (left) looks for a way back into this match on their plastic pitch at the Luzhniki stadium

Napoli v Chelsea: Striker Didier Drogba gives his support to under-pressure Chelsea manager Andre Villas-Boas, who seems to be in a relaxed mood ahead of his side's match against Napoli at Stadio San Paolo after reiterating this week that he has received full backing from club owner Roman Abramovich

CSKA Moscow stun Real deep into injury time at the end of the 90 minutes when they snatch an equaliser through a powerful volley by debutant Swedish midfielder Pontus Wernbloom (right) from close range after Real fail to clear a cross into the area

Didier Drogba (ground) is treated after a collision with Napoli's Argentine defender Hugo Armando Campagnaro (right) but both players are soon back on their feet, although Campagnaro needed further treatment off the field before reappearing with a bandage to cover his head wound

Chelsea take the lead through Spanish midfielder Juan Mata after Napoli captain Paolo Cannavaro fails to clear a cross into the box and Mata pounces to slot home from six yards out. Moments earlier Blues goalkeeper Petr Cech makes a fine save from Uruguayan striker Edinson Cavani to deny the home side the lead

Napoli level the score after applying pressure on the Chelsea defence and it's their in-form Argentine play-maker Ezequiel Lavezzi who turns past Portugese midfielder Raul Meireles and curls in an effort from the edge of the box and beats Petr Cech who has been in terrific form

Napoli storm into a 2-1 lead just before half-time when Chelsea's chief tormentor Cavani nods home a cross from midfielder Gokhan Inler from close range which both Gary Cahill and Branislav Ivanović fail to intercept

Napoli now lead 3-1 and once again it's Cavani and Lavezzi who link up to pull the the Chelsea defence apart. Cavani out-muscles David Luiz, squares the ball to Lavezzi and the Argentine finishes the move from 10 yards out