Paraphrasing news headline

The user provided a news headline in Chinese about Benfica's winter transfer strategy. They might be looking for a summary or a rewritten piece based on that headline. Since I can't browse, I’ll create a brief article from what they've given me. I'll mention that Benfica won't sell two promising young stars until they've secured replacements in the upcoming transfer window, based on the information from the outlet Record. I'll keep it concise and factual!