Team news ahead of Tuesday's games

Arsenal v Olympiacos
Arsenal: Čech; Monreal, Koscielny, Mertesacker, Bellerín; Coquelin, Özil, Ramsey; Sánchez, Oxlade-Chamberlain, Walcott.
Out: Giroud (suspended), Wilshere (calf/shin), Rosický (knee), Welbeck (knee)
Doubtful: Coquelin (knee), Flamini (hamstring), Arteta (muscle)

Olympiacos: Roberto; Elabdellaoui, Botía, Siovas, Masuaku; Cambiasso, Salino, Kasami; Fortounis, Pardo; Ideye.
Out: Milivojević (suspended), Bouchalakis (left thigh), Maniatis (knee/unfit)
Doubtful: Da Costa (calf), Domínguez (thigh strain)

Yacine Brahimi is a doubt for Porto©AFP/Getty Images

Porto v Chelsea
Porto: Casillas; Maxi Pereira, Maicon, Marcano, Layún; Rúben Neves, André André, Imbula; Corona, Aboubakar, Brahimi.
Out: André Silva (ankle)
Doubtful: Brahimi (knee)

Chelsea: Begović; Ivanović, Cahill, Terry, Azpilicueta; Matić, Fàbregas; Willian, Oscar, Hazard; Costa.
Out: Courtois (knee)

Barcelona v Bayer Leverkusen
Barcelona: Ter Stegen; Alves, Piqué, Mascherano, Alba; Busquets; Rakitić, Iniesta; Neymar, Suárez, Munir.
Out: Vermaelen (calf), Rafinha (knee), Messi (knee), Adriano (thigh), Claudio Bravo (calf)

Leverkusen: Leno; Donati, Papadopoulos, Tah, Wendell; Bender, Kramer, Bellarabi, Hakan Çalhanoğlu; Hernández, Kiessling.
Out: Jedvaj (thigh), Ömer Toprak (thigh), Aránguiz (achilles)
Doubtful: Hilbert (knee)

BATE Borisov v Roma
BATE: Chernik; Polyakov, Dubra, Milunović, Mladenović; Nikolić, A Volodko; Stasevich, Hleb, Gordeichuk; Jevtić.
Out: Rodionov (knee), Zhavnerchik (ankle)

Roma:De Sanctis; Florenzi, Manolas, De Rossi, Digne; Pjanić, Nainggolan, Vainqueur; Salah, Gervinho, Iturbe.
Out: Totti (thigh), Keita (thigh), Džeko (knee)
Doubtful: Iago Falqué (knee)

Arturo Vidal has a knee problem©Getty Images

Bayern v Dinamo Zagreb
Bayern: Neuer; Lahm, Boateng, Alaba, Bernat; Vidal, Xabi Alonso, Thiago Alcántara; Müller, Lewandowski, Douglas Costa.
Out: Benatia (thigh), Badstuber (thigh), Kirchhoff (Achilles), Ribéry (ankle), Robben (groin)
Doubtful: Vidal (knee), Rode (unspecified)

Dinamo: Eduardo; Măţel, Taravel, Benković, Pivarić; Soudani, Ademi, Machado, Antolić, Fernandes; Pjaca.
Out: Schildenfeld (thigh), Pavičić (foot), Sigali (knee), Ivo Pinto (hamstring)

Zenit v Gent
Zenit: Lodygin; Smolnikov, Garay, Lombaerts, Criscito; Javi García, Witsel, Yusupov, Shatov, Danny; Dzyuba.
Out: Fayzulin (knee)
Doubtful: Hulk (groin), Anyukov (leg)

Gent: Sels; Asare, Mitrović, Nielsen; Netro, Kums; Raman, Milicevic, Matton; Simon, Depoitre.
Out: Gershon (knee), Johansson (knee), Foket (suspended), Dejaegere (suspended)

Maccabi Tel-Aviv v Dynamo Kyiv
Maccabi: Rajković; Shpungin, Ben Haim I, Tibi, Ben Harush; Rikan, Alberman, Mitrović, Miha, Ben Haim II; Zahavi.
Out: Igiebor (knee)
Doubtful: Radonjić (knee)

Younes Belhanda misses out in Israel©Getty Images

Dynamo: Shovkovskiy; Danilo Silva, Dragovic, Khacheridi, Antunes; Rybalka, Veloso, Garmash, Gusev, Yarmolenko; Kravets.
Out: Belhanda (stomach), Teodorczyk (leg), Makarenko (Achilles), Burda (unspecified), Myakushko (unspecified)

Lyon v Valencia
Lyon:Lopes; Jallet, Biševac, Umtiti, Morel; Ferri/Darder, Gonalons, Tolisso, Valbuena; Beauvue, Lacazette.
Out: Koné (foot), Bedimo (thigh), Grenier (thigh), Rafael (thigh), Yanga-Mbiwa (groin), Fekir (knee)

Valencia: Ryan; Cancelo, Mustafi, Abdennour, Orbán; Pérez, Fuego, Parejo; Piatti, Negredo, Feghouli.
Out: André Gomes (muscle), Gayà (hamstring), Diego Alves (knee)