Team news ahead of Tuesday's games

Arsenal v Dinamo Zagreb
Arsenal: Čech; Bellerín, Mertesacker, Koscielny, Monreal; Flamini, Cazorla; Sánchez, Özil, Gibbs; Giroud.
Out: Coquelin (knee), Arteta (calf), Wilshire (calf), Walcott (calf), Oxlade-Chamberlain (hamstring), Rosický (knee), Welbeck (knee)
Doubtful: Ramsey (match fitness)

Aaron Ramsey: a doubt for injury-hit Arsenal©AFP/Getty Images

Dinamo Zagreb: Eduardo; Pinto, Sigali, Taravel, Musa; Machado, Antolić, Rog; Soudani, Fernandes; Pjaca.
Out: Pivarić (suspended), Schildenfeld (thigh)

Porto v Dynamo Kyiv 
Porto: Casillas; Maxi Pereira, Marcano, Martins Indi, Layún; Danilo, Rúben Neves, Imbula; André André, Aboubakar, Brahimi.
Out: Maicon (thigh)

Dynamo Kyiv: Shovkovskiy; Danilo Silva, Dragovic, Khacheridi, Antunes; Rybalka, Sydorchuk, Garmash, González, Yarmolenko; Kravets.
Out: Vida (unspecified), Morozyuk (illness)

Maccabi Tel-Aviv v Chelsea
Maccabi: Rajković; Shpungin, García, Ben Haim, Rikan; Alberman, Igiebor, Peretz; Ben Chaim, Vermouth, Zahavi.
Out: Radonjić (ankle)
Doubtful: Ben Chaim (hamstring)

Chelsea: Begović; Ivanović, Zouma, Terry, Azpilicueta; Matić, Fàbregas; Pedro, Hazard, Willian; Costa.
Out: Courtois (knee), Falcao (unspecified)

No thumbs-up for Mascherano©AFP/Getty Images

Barcelona v Roma 
Barcelona: Ter Stegen; Alves, Piqué, Vermaelen, Alba; Busquets, Sergi Roberto, Iniesta; Messi, Suárez, Neymar.
Out: Douglas (wrist), Rafinha (knee), Mascherano (dead leg)

Roma: Szczęsny; Maicon, Rüdiger, Manolas, Digne; De Rossi; Florenzi, Nainggolan, Pjanić, Falqué; Džeko.
Out: Gervinho (thigh), Salah (ankle), Totti (thigh)
Doubtful: De Rossi (thigh)

Bayern München v Olympiacos
Bayern: Neuer; Lahm, Martínez, Boateng, Rafinha (Alaba); Xabi Alonso, Vidal, Robben, Müller, Douglas Costa; Lewandowski.
Out: Bernat (groin) Thiago Alcántara (knee), Götze (groin), Ribéry (ankle)
Doubtful: Alaba (ankle)

Olympiacos: Roberto; Elabdellaoui, Da Costa, Siovas, Masuaku (Salino); Cambiasso, Milivojević, Kasami; Sebá (Pardo), Fortounis; Ideye.
Out: Botía (hamstring), Bouchalakis (thigh)
Doubtful: Maniatis (knee), Domínguez (hamstring)

Will Danijel Milicevic face Lyon again?©Getty Images

Lyon v Gent 
Lyon: Lopes; Rafael, Biševac, Yanga-Mbiwa, Morel; Ferri, Tolisso, Darder, Valbuena; Beauvue, Lacazette.
Out: Umtiti (knee), Grenier (fitness), Fekir (knee), Kalulu (ankle), Jallet (rib), Fofana (knee), Gonalons (suspended)
Doubtful: Biševac (hamstring)

Gent: Sels; Asare, Mitrović, Nielsen; Neto, Kums; Saief, Dejaegere, Milicevic, Foket; Depoitre.
Out: Gershon (knee) Matton (foot), Pedersen (ankle)
Doubtful: Depoitre (ankle), Van Der Bruggen (stomach muscle), Milicevic (unspecified), Johansson (ankle)

BATE Borisov v Bayer Leverkusen 
BATE: Chernik; Zhavnerchik, Polyakov, Milunović, Mladenović; Yablonski, A Volodko; Gordeichuk, Hleb, M Volodko; Mozolevski.
Out: Rodionov (knee), Stasevich (foot)

André Ramalho (R) could start for Bayer©Getty Images

Leverkusen: Leno; Donati, Ramalho, Tah, Wendell; Kramer, Kampl; Bellarabi, Çalhanoğlu, Mehmedi; Hernández.
Out: Bender (ankle), Kiessling (ill), Jedvaj (hip), Hilbert (knee), Ryu (ankle), Papadopoulos (suspended), Toprak (suspended)

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

Valencia: Jaume; João Cancelo, Vezo, Abdennour, Gayà; Enzo Pérez, André Gomes, Parejo; Santi Mina, Feghouli, Alcácer.
Out: Diego Alves (knee), Mustafi (muscular), Barragán (muscular), Piatti (muscular), Rodrigo (knee), Negredo (appendicitis)
Doubtful: Javi Fuego (illness)