New York City FC head coach Jason Kreis has dismissed speculation that Frank Lampard could have his loan stay at Manchester City extended.

"There is no truth to that rumour at all," he said in a conference call.

The MLS season doesn't begin until March.

With City set to lose one central midfielder in January when Yaya Toure is likely to be part of Ivory Coast's squad for the African Nations Cup -- which ends on Feb. 8 -- manager Manuel Pellegrini has said the club are open to extending Lampard's deal.

Frank Lampard is due to return to New York City FC in January, but Manuel Pellegrini suggested he could remain at Manchester City for the entire season.

NYCFC is the sister club of Manchester City.

“We will do what is best for the team and the player," said Pellegrini. "We must talk about a lot of things but it is not impossible for him to stay here. It is an issue that we will see further down the line. We will see what happens in January and we have two or three months to decide.”

Lampard scored the match-tying goal against Chelsea on Sunday and scored twice in their Capital One Cup match on Wednesday.

The MLS season starts in mid-March. 

“For me it is never difficult to put good players in the team," said Pellegrini. "The problem is when you don’t have [good players]. He is a very important player for our team and maybe, at 36, he cannot play three games in a row.”

Bayern Munich confirmed that Julian Green has joined Hamburg on a one-year loan deal after signing Sinan Kurt from Borussia Monchengladbach.

Green, 19, leaves Munich, who have brought in 18-year-old Kurt from Monchengladbach. Xherdan Shaqiri, however, has been told he is not allowed to leave the Bundesliga champions despite interest from several other clubs.

The loan deal includes no option to make the deal permanent, according to Hamburger Abendblatt.

The transfer has the backing of United States head coach Jurgen Klinsmann, who "is very keen on Hamburg," according to Green's father Jerry, who spoke to ESPN FC on Sunday.

"He knows the coach [Mirko Slomka]. He knows the people there. It's a great opportunity for Julian to play some games. He thinks this is going to be a good thing for Julian and the U.S. team," Jerry Green said.

Real Madrid has acquired Javier Hernández on a season-long loan from Manchester United.

Real has the option to buy Chicharito at the end of the season.

Hernández will provide backup for Real’s first-choice striker Karim Benzema and will be expected to make an impact from the bench.

Hernández joined United from hometown side Guadalajara in July 2010 but after a fine debut season, when he scored 20 goals in all competitions, he has played mostly as a substitute.

Radamel Falcao will join Manchester United on a season-long loan from Monaco.

The loan fee is understood to be no more than £6 million, with the club having the option of a permanent deal for the player at the end of the season.

Falcao recently returned from a serious knee injury that prevented him from playing for Colombia in the World Cup.

The striker is on £300,000-a-week at Monaco, although United are not expected to cover the full amount.

With Van Gaal playing a two-striker system that has Wayne Rooney and Robin van Persie as the first-choice forwards, how Falcao fits into the side is yet to be determined.

Arsenal and Manchester City were also interested in Falcao.