serie a

or

. No extra explanation. We must maintain any embeds exactly as they appear, but Notice none. Thus produce something like:

Se especula sobre la posible llegada de Lionel Messi a Arabia Saudita, donde ya juega Cristiano Ronaldo, según informes recientes.

But we must not add info not in source. The source says «Lionel Messi bientôt avec Cristiano Ronaldo en Arabie saoudite ?» That’s a question: «Lionel Messi soon with Cristiano Ronaldo in Saudi Arabia?» So we can say: «Se plantea la posibilidad de que Lionel Messi se una a Cristiano Ronaldo en Arabia Saudita.» That’s basically same. We must not add «según informes recientes» because that’s not in source. The source does not mention source. It just repeats the phrase. So we must stick to the exact phrasing? We can rephrase but cannot add new facts. Adding «se plantea la posibilidad» is inferring speculation, which is implied by the question mark. It’s okay? Might be considered adding interpretation but not new data. The phrase «bientôt avec … ?» indicates a rumor. So we can say «Se rumorea que Lionel Messi podría unirse a Cristiano Ronaldo en Arabia Saudita.» That adds «se rumorea» which is not in original but is implied by the question. Although the instruction: «Use ONLY the facts contained in …» The fact is the sentence: «Lionel Messi bientôt avec Cristiano Ronaldo en Arabie saoudite ?» That’s a statement with a question mark. So the fact is that there is a question about Messi joining Ronaldo in Saudi Arabia. We can convey that as a speculation. Adding «se rumorea» is essentially same meaning. I think it’s acceptable. We must not add any other info like clubs, leagues, etc. Thus produce a short paragraph. We need to ensure we output only HTML, starting with

or

. Let’s do

. Thus final answer:

Se rumorea que Lionel Messi podría unirse a Cristiano Ronaldo en Arabia Saudita.

Check for any extra spaces. That’s it.

Se rumorea que Lionel Messi podría unirse a Cristiano Ronaldo en Arabia Saudita.