Mainz have already shown they can turn matches into open, end-to-end contests - and that matters against a Leverkusen side that looks dangerous going forward but remain vulnerable away from home.

After a goalless draw in their opener, Mainz scored 10 goals across their next three Bundesliga matches, including five away at Hamburg and four at Mönchengladbach.

Both of Leverkusen's away games have seen goals at both ends: a 3-2 defeat to Elversberg and a 2-2 draw with Augsburg.

Patrik Schick adds to the visitors' attacking threat, with four goals and one assist in four league appearances, and is expected to start on Saturday.

The case goes beyond the numbers. Mainz arrive in fine attacking form, while Leverkusen have the quality to find the net at any stage - but have also shown they can be exposed on the road.

Union Berlin are under pressure, and that could make this a far more open contest than their early-season results might suggest.

At home, Union drew 3-3 with Frankfurt and lost 3-1 to Schalke, conceding three goals in each of their two matches in front of their own fans.

Elversberg, meanwhile, have already shown they can pose a threat away from home, beating Mönchengladbach 4-3 and averaging 1.47 xG on the road.

Damilola Mokwa is one to watch, having scored twice in four appearances, and is expected to lead the visitors' attack.

The recent goalless draw against Schalke offers a note of caution, but Union continue to leave themselves exposed whenever they push forward.

That's where the strongest case for Both Teams to Score lies: two sides capable of creating chances, with the hosts still struggling to find any defensive stability.

Lerkendal has been a particularly fruitful ground for Rosenborg's attack this season, and their recent results make that even clearer.

They have scored 27 goals in 11 home matches and head into this fixture on the back of five consecutive home wins in the Eliteserien, including a 4-0 victory over HamKam and a 5-3 win against Tromsø.

Sandefjord arrive with a very different record. They have conceded 17 goals in 10 away matches, but have also scored 11 - enough to suggest they shouldn't simply be written off.

That matters because, for all Rosenborg's attacking strength, they have also conceded 13 goals in front of their own supporters.

Both Teams to Score doesn't necessarily require an even contest.

The more convincing scenario is one in which Rosenborg apply constant pressure, Sandefjord leave gaps at the back, and the visitors have enough attacking quality to make at least one of their opportunities count.

Brest are yet to keep a single clean sheet in Ligue 1 this season, and that tells an important story about a side whose attacking performances have been better than their results might suggest.

They have scored seven goals and conceded eight in five league matches, with open contests against Le Mans, Toulouse, Le Havre and Auxerre.

Kamory Doumbia has been one of their main attacking threats, scoring four goals in the opening five rounds, and is once again expected to start behind Ludovic Ajorque.

Angers are less explosive going forward, but Amine Sbaï has contributed one goal and one assist and is also projected to feature in the starting XI.

One statistic stands out above all others: NEC have conceded in all seven of their Eredivisie matches this season, with Both Teams to Score landing in six of them.

That gives Ajax every reason to fancy their chances, especially after scoring 17 goals across their last five league matches.

But NEC carry a genuine attacking threat of their own, having scored seven goals in three away games - an average of 2.33 per match on the road.

Tjaronn Chery has played an important part in that output, scoring three league goals, and is expected to start in Amsterdam.

For Ajax, Oscar Gloukh is also among the projected starters, having registered one goal and four assists in the competition.

BTTS here doesn't require an evenly matched contest. It simply needs a free-scoring Ajax side to face an NEC team that knows how to find the net but is yet to find a way to keep opponents out.

Real Madrid may be favourites, but that doesn't rule out Both Teams to Score - especially against a Villarreal side with enough attacking firepower to cause problems for the Real defence.

The Yellow Submarine have scored in six of their seven league matches, with BTTS landing in six of them.

Real Madrid, meanwhile, have seen both teams score in five of their seven fixtures.

There is also an important team-news factor: Dean Huijsen is suspended, and Real have further defensive absences to contend with.

Jude Bellingham is expected to start, having registered three goals and two assists in La Liga.

He also comes into the match after scoring once and providing three assists for England against Croatia.

At the other end, Alberto Moleiro is another likely starter, with two goals and three assists in the league.

It's an appealing combination: two attacks with several players capable of making the difference, facing a Real Madrid side that, despite their superior individual quality, have availability issues in their backline.