So what's yours guys? You can pick any player on your team that is 23 years old or younger. This may be simply your opinion, and you can put all of Spur's youth team if that's your favorite U-23 starting 11. Here's some ideas guys.

GK
Thibaut Courtois (Atletico Madrid)
David de Gea (Manchester United)
Marc-Andre ter Stegen (Monchengladbach)

DF
Mattia De Sciglio (AC Milan)
Raphael Varane (Real Madrid)
Marting Montoya (Barcelona)
Marc Bartra (Barcelona)
Phil Jones (Manchester United)
Matija Nastasic (Manchester City)
Jordi Alba (Barcelona)
Rafael da Silva (Manchester United)

MD
Isco (Malaga)
Mario Gotze (Dortmund)
Ilkay Gundogan (Dortmund)
Oscar (Chelsea)
Thiago Alcantara (Barcelona)
Tom Cleverley (Manchester United)
Lucas Moura (PSG)
Toni Kroos (Bayern)

AT
Gerard Deulofeu (Barcelona B)
Neymar (Santos)
Eden Hazard (Chelsea)
Gareth Bale (Tottenham)
James Rodriguez (Porto)
Xherdan Shaqiri (Bayern)
Thomas Muller (Bayern)
Marco Reus (Dortmund)

You don't have to choose from this list (this is opinionated and this list was for ideas), so feel free to make the team of your choice!

Here's mine.

                               Courtois

Rafael ---- Varane ------ Lovren ------ De Sciglio

           Kroos -------- Gotze -------- Oscar

Eden Hazard ---------------------- Gareth Bale

                          Neymar da Silva

great one.
Doesnt differ a lot from mine.
I would choose Isco over Oscar.
Αnd maybe i would fit Mbiwa somewhere in the defence :)

@DonAndres  Sure! Isco and Oscar are both fantastic players, but I believe that Oscar's captured everyone's attention with his stellar Champions League and now Europa League displays! But then again, Isco won FIFA's Golden Boy award.

Mine is:

Courtois
Danilo - Juan - Lovren - D.Alaba
Kroos - Gotze - G.Bale
E. Hazard - Oscar
Neymar or El Shaarawy

Damn. How could I forget Stephan El Shaarawy. >.<

                        Courtois

Rafael      Varane       Nastasic       J.Alba

                      Kroos  

           Lucas      Oscar         Bale

                    Muller

                              Neymar

I'll make an U-21 since there's so many to choose from.

Courtois

Danilo – Varane – Nastasić
– Alaba

Rodriguez – Götze – Oscar –
Lucas

Neymar – El Shaarawy

If I were to create an U-23 starting 11 I would've had to look at players such as Cleverley, Kroos, Müller, Hazard, Bale, Reus and more. I couldn't come to a final conclusion simply because there's too many gifted players from 23 years and under for me to choose from.

As usual, it messes up. Seriously, this need to be fixed. I'm afraid of copying from Word as it looks horrible every single time I post something where the text has been in another format, just like the one above. It shouldn't be like that.

what about Wilshere ?

                                                              Courtois

Varane                                Barta                         Alba                Bale

                                                         Wilshere

Hazard                       Gotze                                   Muller             Neymar jr.

                                                      *Balotelli

#SUBS

Rodriguez
El Shaarawy
Oscar
Kroos 
Cleverly
Danilo

Captain: Courtois/Wilshere (Both have good leadership skills for me!)
Right corner: Wilshere (Bale is better at headering, so not him)
Left corner: Gotze (Obvious choice for me, second would have been Hazard
Free kicks: Bale (AMAZING free kicks this year!)
Penalty: Balotelli (He just simply does NOT miss them, Neymar does sometimes!)

 *Why does everyone forget about this guy!??!? He a beast, and has made an amazing impact on the world of football, and his club!                                                        

Anyone else?

I thought this was an interesting thread barely anyone posted.

...................................................Courtois

Rafael Silva...............Raphael Varane................Phil Jones................Jordi Alba

................................Jack Wilshere................Mario Gotze

Eden Hazard...............................Marco Reus...............................Gareth Bale

..............................................El Sharaawy

Subs : 

David De Gea
Oscar
Muller
Toni Kroos
Isco
Balotelli
Danilo

I would post if I wasn't on my phone :P. This is an interesing post, @tdot. I'm also surprised not much people posted in this thread.

Hooray for tablets!
Courtois

Rafael -- Varane -- Jones -- Alba

Wilshere -- Oscar

Hazard -- Isco -- Bale

Balotelli

@Vendetta 
No Offence mate,but dont you think that its too hard for a team to play without a Defensive Midfielder?

Of course i am talking like this was a starting XI to play a game.

Fair point. Too bad I don't know much DMs under 23...

@Vendetta
yes :P .. me too. i cant remember anyone now.. :)

@DonAndres and Vendetta

Sven and Lars Bender, Ilkay Gundogan, Paul Pogba... :P