Fernando Alonso has re-affirmed that his Pirelli tyre test with McLaren next week is not a signal of a possible F1 return.

The Spaniard has taken up a role as a McLaren adviser and ambassador, having called time on a 17-year career in the top division of racing.

The test at the Bahrain circuit will see Alonso drive the MCL34, that will be in use by the team for the 2019 and 2020 seasons.

McLaren are also likely to trial newcomer Carlos Sainz Jr. in the car, after his high-profile switch from Renault.

Alonso is currently committed to preparing for the Indianapolis 500 in May, having previously missed the 2017 Monaco Grand Prix to compete in the event.

Alonso was however forced into retirement in the Indy500 that year, however, and has returned determined to secure victory, having led for 27 laps in 2017.

Despite this, the 37-year old has no clear plans after the race on May 26 aside his advisory role with McLaren, and some have speculated that the test drive in Bahrain is a way of keeping the 2005 and 2006 champion in touch with vehicle developments, ahead of a possible return.

Alonso has been quick to dismiss such speculation however, saying that his 2018 exit had been motivated by the seeking out of new opportunities.

"No. As I said last year, and in Barcelona [testing] as well, my idea is not to come back," he said, per Motorsport.

"When I said last year 'bye-bye' it was because I felt this chapter was already complete. I achieved a lot more in F1 than I dreamed of and I had great opportunities outside F1 to do something unprecedented. That's why I took the decision."

Despite this, Alonso refused to rule out a future return to the sport, although he insisted it would require something special.

"So coming back is not in the plan. If something happened and a great opportunity arrives, I probably will consider. I don't close doors 100% to anything in the future."

It appears that Alonso is unlikely to return to F1 in a driving capacity, with future participation in endurance racing likely, after his appearance at the WEC in Sebring earlier this month.

It has also been pointed out that the test event in Bahrain is mainly focused on examining 'rookie' drivers Carlos Sainz Jr. and Lando Norris.

Despite this, the sight of Alonso in an F1 car again will be a nostalgic experience for fans far and wide.