(Basketball Champions League) – What do the likes of Iberostar Tenerife, Partizan Belgrade, Besiktas Sompo Japan or Banvit have in common? These four teams are off to a perfect start in their respective domestic or regional league campaign but their undefeated record is being put to the test on the road in the opening week of the Basketball Champions League Regular Season.

A total of 14 teams arrive at the premiere holding an unblemished record back home. Group A and Group E each include five of them, two are in Group B, one in Group C and one in Group D.

Iberostar Tenerife have opened the Spanish Liga Endesa season on a four-game winning streak for the first time in club history and sit on top of the standings, together with Bilbao. On Tuesday, Tenerife travel to Zagreb to take on Cibona in one of the must-watch games of the Group D premiere.

Group E opening week action features tough road tests for three unbeaten league leaders, two of which are scheduled for Tuesday. Besiktas, off to a perfect 2-0 start in the Turkish BSL league, are off to Charleroi to face Proximus Spirou who appear to be finding their way after a rocky start to the Belgian league. Reigning Polish champions Stelmet Zielona Gora who hold the same opening record in the PLK have to deal with the dreaded trip to Sardegna to face Dinamo Sassari. On Wednesday, Partizan Belgrade who are joint leaders of the ABA League on a 5-0 record travel to MHP RIESEN Ludwigsburg.

Meanwhile Group E also features a direct clash between unbeaten teams when AEK play host to Szolnoki Olaj in Athens on Tuesday. Half an hour later the same scenario takes place in Group A, when Bakken Bears, holding a 3-0 record in the Danish Baskeligaen, receive in Aarhus CEZ Nymburk, who are riding a 7-game winning streak in the Czech League.

Also in Group A Tuesday action, Banvit are travelling to hard-as-nails Ironi Nahariya for their opening game, approximately 48 hours after stealing the headlines in Turkey with their 93-88 triumph over Darussafaka. AS Monaco extended their winning streak in the French Pro A to four games on Sunday and on Tuesday they will play host to Fraport Skyliners. Helios Suns Domzale, currently at 2-0 in the Slovenian league, play host to Aris Thessaloniki later on Tuesday.

Meanwhile in Group B on Wednesday, Kataja play host to Israeli champions Maccabi Rand Media and at the same time Khimik entertain Avtodor Saratov. Kataja are off to a 3-0 start in the Finnish league while Khimik have jumped to 6-0 in the Ukrainian Superleague. Also on Wednesday but in Group C action, Ventspils face a demanding game in front of their fans as EWE Baskets Oldenburg come to town to test the Latvian side’s 6-0 start in the LBL.