Munich - Ever wondered what your favourite Bundesliga stars get up to during the week? No sweat, Off the Ball, bundesliga.com's fun-filled periodical, has all the answers.

In today's issue, we learn how the FC Bayern München stars get to know about new signings, Adrian Ramos' joy at having returned to the Colombia set-up as well as arch rivals Borussia Dortmund and FC Schalke 04 cooperating for a good cause.

Ever wondered how the Bayern stars learn when the club sign a new player? Thomas Müller (l.) revealed how he found out about 's transfer last season to a group of FCB supporters. "I read about it in the newspaper," the Germany attacker said: "Journalists tend to be the first to know about things like that." Not so when the Bundesliga pacesetters secured the services of Pep Guardiola last winter, however. "We were called in to [the club's training ground] Säbener Straße and then told about it," recalled Müller.

was a happy man indeed after earning his first cap for Colombia in more than two years on Wednesday. "It was simply amazing," said the Hertha Berlin hotshot after making his 22nd international appearance in a 1-1 friendly draw against Tunisia. "It's been a long time since I last played for Colombia and I really enjoyed the game. I'll try and do well for Hertha, which will hopefully result in further call-ups."

As intense as their on-field rivalry may be, Borussia Dortmund and Schalke 04 showed they can put their differences aside in aid of a good cause. In a campaign aiming to encourage people to donate blood supported by the DFL Deutsche Fußball Liga and the German Red Cross, BVB stars such as (pictured), and Schalke's led by example, as this Tweet posted by former S04 and Dortmund defender Christoph Metzelder shows: