I imagine some people won't have played PES 2013 often enough to reach January yet - and if they have, chances are, they're playing the game a lot, and thus likely to spend less time on this forum.
In past PES games, it's always been quite difficult to sell a player. What are you hoping to gain from selling a player? Are you seeking just money, or rather money to then go and buy other players? Another query, is to what setting is your ML transfer activity is set as. If it's set to "low", then expect minimal transfers between the CPU and their approaches.
When it comes to offloading members of my squad, in previous versions of the game, I have transfer listed them, but unfortunately the majority would never be approached. Alternatively, I now trade players within a deal if I can, but this may not be relevant if you're purely wanting to accumulate money. Hopefully someone else will be able to help you with this matter though. Fingers crossed, but I'm a little skeptical.
Finally, 'double posting' is against the forum rules, but there are occasions in which we're lenient about the matter, and given your second post wasn't until a full day after the first, that's not too back. But I just felt like it was worth giving you a heads up in case you forgot.
