Cologne - They may have three weeks of solid training behind them, but the Bundesliga stars still have plenty of work to do to be fit in time for the start of the 2015/16 season.

As ever, bundesliga.com kept you posted on all the latest developments from around the training grounds…

Gute Nacht!

That's all from our live updates for today, but make sure you join us tomorrow for more. Bis dann!

Dortmund ease to victory

Thomas Tuchel's men picked up their fifth win from six pre-season fixtures so far after beating Swiss outfit FC Luzern 4-1, with captain Mats Hummels scoring a particularly eye-catching half-volley from the edge of the penalty area!

Full time!

A number of Bundesliga clubs played warm-up games today, with Hertha Berlin, Leverkusen, Hannover and Hoffenheim all drawing against their respective opponents, while Bayern and Eintracht Frankfurt both recorded victories. Click here for a club-by-club overview of summer results and fixtures.

Mainz working hard

Mainz's Spanish defender Jairo Samperio is enjoying a relaxed evening poolside after what sounds like a tough day at the office...

Frankfurt win

The Eagles picked up a morale boosting victory over English side Leeds United, coming from behind to win 2-1 while at the training camp in Windischgarten, Austria.

Ramalho's old haunt

New Bayer 04 Leverkusen defender Andre Ramalho is well received by former club Red Bull Salzburg ahead of the two side's friendly clash.

Translation: Red Bull Salzburg thank Andre Ramalho once last time and wish him luck at Bayer 04.

That's a wrap - almost!

Not long until the Hamburger SV players can put their feet up for the night...

Translation: Warm-down and then home time!

BVB roll into town

The unmistakable Dortmund team bus has arrived at FC Luzern's Swissporarena...

Dortmund all set

Thomas Tuchel names a strong side for tonight's friendly against FC Luzern (kick-off 19:45 CEST)...

Just chilling

FC Augsburg's Dong-Won Ji and Jeong-Ho Hong shouldn't have any cramp in the morning...

Eagles vs. Whites

Eintracht Frankfurt's friendly against English Championship side Leeds United AFC has just got under way in Kossen. Remember Tony Yeboah? He played for both clubs in his prime.

Thirsty work

VfB Stuttgart have been working as hard as ever under the Swiss sun...

Translation: Intensive match drills out on the pitch, before a drinks breaks because of the heat.

Hertha in action

Hertha Berlin have kicked off against SV Grödig, with new signing Mitchell Weiser in the starting line-up.

Translation: Kick-off! The Herthaner in dark blue, playing from right to left.

Schalke arrive in Poland

The Royal Blues have touched down in Gdansk. Andre Breitenreiter's men face KS Lechia in a friendly tomorrow.

Afternoon session in Evian

"The team is here," reads Mainz's tweet below.

Wolves in action

VfL Wolfsburg play FC Zürich in Singen tonight. "At 19.00 CEST we get underway," reads the tweet below. "The dressing rooms are ready and waiting for the Wolves."

Guangzhou calling

Catch up on Bayern's 1-0 victory over Inter in Shanghai here, or enjoy live updates from the German champions' China tour here. Or, why not do both?!

Guess who!

Which Gladbach star is displaying perfect technique in the water here?

Skills in Stuttgart

"Back on the training pitch," reads the tweet below. "Keep it up!"

BVB in the bus

Die Schwarz-Gelben face FC Luzern tonight.

The football button

Already a contender for the best tweet of 2015/16, Hiroki Yamada, of Bundesliga 2 side Karlsruher SC, has just sent out this gem. "I bought a TV," he begins. "I was surprised when there was a football button [on the remote]." Don't be surprised, Hiroki, make the most of it!

Praise you

Dortmund's new goalkeeper Roman Bürki has had some laudatory words for Roman Weidenfeller.

Time to put the feet up

The Werder Bremen players are done for the day following what looks to have been a gruelling set of burpees out on the training pitch.

Bon voyage!

Schalke are currently heading to Poland, where they will face KS Lechia Gdansk in a friendly on Wednesday.

Two from two!

Bayern's tour of China continues to be a huge success as Pep Guardiola's boys finally broke through a stubborn Inter defence to win 1-0.

Career change for Köln's Jonas Hector?

Bayern have just taken the lead in their friendly against Inter...

Lahm relief

Thankfully, the injury Philipp Lahm picked up during the first half is nothing to worry about.

Back underway

Viktor Skripnik’s side are about to begin their second training session of the day.

Goalless at the break

Neither Bayern nor Inter have managed to break the deadlock in the first half of their friendly in Shanghai.

Rear view

Something for the ladies out there… maybe. No?

Underway in Shanghai

It’s still goalless between FC Bayern and Internazionale Milano at the Shanghai Stadium, but David Alaba has gone close for Pep Guardiola’s side.

A wanted man

Hertha new boy Vladimir Darida is up to face the press.

Playstation break!

The Mainz boys are enjoying the console during their lunch hour.

Wise words

"In training, every centimetre counts," Neven Subotic has tweeted.

Many happy returns!

Ömer Toprak turns 26 today.

Off to Poland

Have a look at the Royal-Blues' pre-season schedule here.

Hard at work in Hamburg

"Training is over after two hours," reads HSV's tweet below. "Nicolai Müller and Ivo Ilicevic were back in first-team training."

More friendly action

Eintracht Frankfurt take on English side Leeds United FC this evening.

The dreaded ice bath!

Mitchell Weiser takes a dip. Hertha face SV Grödig at 18.00 CEST tonight.

Take a peek

Watch the Schalke 04 players being put through their paces live on Periscope!

Bathed in sunshine

No such problems for Mainz this morning: the sun is shining bright at their training camp in Evian, France.

Staying hydrated

It’s been bucketing down at Hoffenheim’s training camp in Lilleström, Norway, but a bit of rain never hurt anyone, eh?

Warming up

Yet another Bundesliga outfit working on their fitness in Austria, VfB Stuttgart have been working up a sweat ahead of their early training session.

Take five

Werder have only recently returned from Zell am See, but the Green-Whites’ preparations are continuing ahead of their friendly against Blumenthaler SV on Wednesday.

Downsizing

Leverkusen’s first session of the day is taking place on a smaller pitch. Die Werkself are currently preparing for the new campaign in Zell am See.

Preparing for Wednesday

The Royal Blues are the third Bundesliga club to take on KS Lechia Gdansk this summer. Wolfsburg and Hannover were both held to a draw by the Polish outfit.

Up bright and early

Translation: Good morning Berlin! At 10 o’clock it’s back to the training ground!

Swiss test

Borussia Dortmund, meanwhile, take on Switzerland FC Luzern later today. Thomas Tuchel’s side are looking to bounce back from last week’s defeat to VfL Bochum.

Friendly action

There are half a dozen friendlies to look forward to on Tuesday, with FC Bayern München, Bayer 04 Leverkusen and Borussia Dortmund all in action. Frankfurt also take on Leeds United in Eugendorf at 18:15 CEST.

Time to refuel

Translation: A healthy breakfast follows the morning gym session. Afterwards, it’s off to the training pitch!

Rise and shine

It’s all about Activation for VfB Stuttgart in Austria this morning…