Cologne - While the Bundesliga's many stars continue to build up their fitness levels ahead of the new season, clubs up and down the country are working tirelessly behind the scenes to strengthen their playing staff in time for the big kick-off in mid August.

bundesliga.com is taking a closer look at each of the 18 top-flight clubs' summer transfer dealings so far. Next up in the series: FC Augsburg.

How they fared in 2014/15...

Last season could scarcely have gone any better for FC Augsburg en route to recording their best ever finish. The Bavarian Swabians were one of the positive surprises of 2014/15, ending up in fifth to clinch a first ever qualification for Europe, even sealing an automatic berth in the UEFA Europa League. Four years after being promoted to the Bundesliga, the Fuggerstädter left many more established names in their wake.

Ins...

Dominik Kohr (r.) (Bayer 04 Leverkusen)

  • Product of Bayer Leverkusen's youth system.
  • Capped by Germany at under-18, under-19 and under-20 level.

What he offers: Versatile 21-year-old midfielder who is equally at home in the centre or on the right of the midfield; can also play as a full-back or even further advanced on the wing.

Ronny Philp (SpVgg Greuther Fürth)

  • Born in Romania, moved to Germany at the age of one.
  • Played alongside Lars and Sven Bender in a Bavarian under-15 selection.

What he offers: Reliable right full-back, rated one of best full-backs in German third tier as he helped SSV Jahn Regensburg to promotion in 2012. Gritty and determined defender.

Outs...

Pierre-Emile Höjbjerg (r.) (FC Bayern München)

  • Scored two goals in 16 appearances on loan for Augsburg last season.
  • Impressed as the leader in Denmark's UEFA Under-21 EURO squad in Czech Republic this summer.

To-do list...

It has been a case of 'if it ain't broke, don't fix it' for FC Augsburg this summer, but the loss of Höjbjerg nevertheless means there should be some tinkering to do between now and September. Finding a like-for-like replacement for the Dane may prove challenging, which is why the Bavarians could instead look for strength in numbers, especially in view of a two-pronged assault – domestically and in Europe – this season. The squad is looking a little lightweight still and a few squad fillers would be ideal for coach Markus Weinzierl (l.) to complement a side he has forged into a formidable outfit.

Editor's note: Not all summer transfers will be discussed here. The players featured in this article made at least ten league appearances for their respective clubs last season, chipped in with numerous goals and assists or made other significant contributions to their team. For an overview of the 2015/16 summer transfers, click here.