The 26-year-old had return into the side toward the begin of the season subsequent to spending over a year on the sidelines recuperating from a cracked foremost cruciate ligament.
He showed up this season yet has not played subsequent to a 2-2 draw with Leicester City on Oct. 17.
Shorn of Rodriguez, Southampton's alternatives in advance are constrained and Koeman said striker Sadio Mane would not be sold in spite of rumours connecting him with a move to Chelsea or Manchester United in January.
Mane joined Southampton from Red Bull Salzburg in September a year ago and has six objectives this crusade.
"Bits of gossip aren't imperative. We will offer no one," Koeman told journalists. "You can get some information about Sadio, Man United, Chelsea, yet we will offer no one in January."
Koeman added that Mane had yet to achieve his maximum capacity however was attempting to accomplish that at Southampton.
"Since the player is creating himself, with all the assistance from the specialized staff and whatever is left of the players. They are demonstrating qualities, and after that obviously huge groups are intrigued," he said.
"It's an ordinary advancement of players who are creating themselves.
"As I would see it's not about cash, it's about aspiration of players and individuals," he included.
Southampton, who are eighth in the Premier League and saw a six-diversion unbeaten run end at Stoke a weekend ago, go to face third-set Manchester City on Saturday.
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