Alexis Sanchez all smiles in return to Arsenal training

There were no signs of unrest during Alexis Sanchez's first training session after a summer packed with speculation over the Chilean's future with Arsenal.

Sanchez, who landed in London on Monday, was put through his paces during a one-on-one training session.

(Photo courtesy: Rodgers Odhiambo)

Despite being the subject of transfer rumours throughout a majority of the summer after seemingly refusing to sign a new contract, the Arsenal star was all smiles upon his return to the club's London Colney training ground.

(Photo courtesy: Getty Images)

Arsenal supporters, however, will need more reassurances than just a collection of photos of a joyous Sanchez in an Arsenal training top to prove he's committed to the club.