Is Martinelli underperforming? Can Mauritania get out of the groups? How do Bologna press? What is a libero? And why do Brighton want Barco?

Good morning analysis fans and welcome to the?#TacticsTuesday?newsletter - full?of analysis, scouting and tactics. Fill up on your football knowledge - follow the?Total Football Analysis?page and be part of the squad that want more than just a match report.

In another AFCON preview, Karim El-Shesheiny takes a look at Mauritania's chances of progressing out of the groups for the first time in their history.

Many people are pointing at Gabriel Martinelli as a key reason to Arsenal's drop in performance - Jack Manship has a look to see whether that is actually the case or just a convenient narrative.

Bologna have impressed in the first half of the Serie A season under Thiago Motta - Andrew Hanna delves deeper to understand how they press.

ICYMI yesterday, Slask Wroclaw lead the Ekstraklasa in Poland -?Anantaajith Raghuraman?analysed the minnows to understand how Erik Exposito's goals are pushing for potential glory.

AFCON starts soon and?Fintan O'Reilly picked out five U23 forwards who could have a breakout tournament.

Beth Limb?analysed Roberto Risnaes - possibly the next top talent from the FC Copenhagen production line.

And Coach?Scott Martin?got deep into the data around the NCAA D1 2023 season and explained his findings.

From the archives, Fintan recommends;

In tribute to the late, great Franz Beckenbauer, we share this tactical analysis of marking systems, including analysis of the ‘libero’ or ‘sweeper’ role the Germany legend is perhaps best known for perfecting.

"On our shortlist” — AC Milan director Geoffrey Moncada has made his club’s interest in Brest centre-back Lilian Brassier public. Get an idea of why I Rossoneri are interested in the now-24 y/o Frenchman.

With Brighton and Hove Albion reportedly close to sealing the signing of Valentín Barco of Boca Juniors, revisit our analysis of how the left-back quickly turned into an offensive reference for the Argentinian giants.

After a lacklustre period on loan with RB Leipzig, will a stint on loan at Hull City be more valuable for Liverpool’s Fábio Carvalho? Remind yourselves of why the Portugal U21 int’l was so sought-after at Fulham back in 2021/22.

And that's it for today - we'll be back tomorrow with more pieces old and new about everything analysis in the football world.

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