Sporting CP have come out on top twice at home and have had some trouble away. Club Brugge held Barcelona to a three-three draw a month ago.
Match Replays
PSG had their first misstep against Bayern in the last round. Tottenham are still undefeated but have shared the spoils twice.
Olympiacos weren't able to contain Arsenal and Barcelona in their most difficult tilts. Real Madrid were nipped by Liverpool in the fourth game.
Liverpool nipped Real Madrid three weeks ago, redeeming themselves for the faux pas against Galatasaray. PSV have had three good displays in a row.
Eintracht Frankfurt have been extremely up and down and equalized with Napoli in their last bout. Atalanta have gathered seven points so far.
Atlético Madrid have been successful in easier fixtures and lost to two heavyweights so far. Inter have marched through a comfortable schedule.
Bayern and Arsenal are two of the only three outfits still with a perfect record. The former have won two crunch matches, while latter in one.
Pafos upset Villarreal in the last round and have already conquered five points, same as Monaco, which recorded their first win against Bodø/Glimt.
Copenhagen picked up a point in the opener but have struggled ever since. Kairat Almaty have the same record but have had a tougher schedule.
Slavia Praha are searching for their first victory but have drawn twice. Instead, Athletic Club have won once but have lost in the other three games.
Marseille have been competitive in every tilt but have picked up points in just one of them. Newcastle United have succeeded in three straight bouts.
Man. City have left only two points on the table so far as they were slowed down by Monaco. Bayer Leverkusen are coming off their first victory.