McLaren on the verge of driver decisions as Grosjean set to be confirmed at Lotus

All eyes are on Woking this week as McLaren move closer to a final decision on their driver lineup for 2015.

While the signature of Fernando Alonso is said to be a formality at this stage, following months of tough salary negotiations, the identity of his team-mate next season is still the subject of ongoing conjecture with Jenson Button and Kevin Magnussen waiting on tenterhooks for a final decision.

Alonso is believed to be visiting the McLaren factory in Surrey this week while team bosses Eric Boullier and Ron Dennis complete the decision making process on which of their two current drivers to retain.

Jenson Button has of late appeared resigned to the possibility that his 15-year career in Formula One is drawing to a close but the Englishman's recent strong performances have meant that he would be the preferred choice for many in McLaren. His 106 points for the season are just under double Magnussen's total.

However, at 22, the Dane has age on his side being 12 years younger than Button and his wage demands are also significantly lower than the 2009 world champion, a not insignificant consideration given McLaren's reduced revenues in the last couple of years.

However, as McLaren gears up for the arrival of works engines from Honda next season, Alonso offered his support for Button's candidature in Brazil last weekend saying that the hugely experienced Somerset racer is "good for F1."

Button hinted in a tweet this morning that a decision is imminent on his future eliciting a response from Mark Webber who urged him to make the rumoured switch to WEC sportscar racing immediately.

"@JensonButton matey just sign that sports car contract and get on with it. Be mega to have you with/against us next year.#greatracing #JB22," read Webber's tweet.

Meanwhile, as Button and Magnussen are left waiting, it appears that another potential McLaren recruit Romain Grosjean has pledged his future to the Lotus team.

The Swiss driver jumped the gun with a tweet on Wednesday announcing that he would race for Lotus again in 2015 but deleted the tweet within minutes.

A Lotus source told jamesallenonf1 that there was a miscommunication on their side but it's "no secret that we are close to a deal."

It is believed that an official announcement of Grosjean to Lotus could be made shortly, removing Grosjean from the list of potential candidates for a drive at McLaren. The Swiss driver was believed to be in the frame at Woking thanks to his close links to former Lotus chief Eric Boullier..