Yes he did; he is shown batting with a personalised version of an Adidas cricket bat - in a test match versus Australia - in the image below. Affectionately referred to as "the little master", Tendulkar is rated as one of the best cricket batters of all time: amassing 30,000 runs and 100 centuries in internationally matches. Tendulkar has achieved near godlike status in India - where cricket is the national sport - and is therefore the ideal candidate for a sportswear endorsement; considering that India has a population of over 1 billion. Adidas has never focused too heavily upon cricket; cricket is more of a specialty sport that is only popular in a handful of nations: England, Australia, India, Pakistan, New Zealand, West Indies and South Africa. However, due to the size of India's population, it's rising GDP and economic power, it is unsurprising that Adidas has targeted Indian cricket as a potential 'pot of gold'.
Adidas manufacture a range of cricket products; bats, shoes, pads and clothing.
Cricket shoes that Adidas currently sell are: Adidas Adipower Vector; Adidas Howzat J V; and Adidas Howzat Full Spike II.
Cricket clothes that Adidas currently sell are: Adidas Shirt Short Sleeve; Adidas Playing Cricket Pants; Adidas Cricket Long Sleeve Sweater; and Adidas Cricket Sleeveless Slipover.
Cricket pads that Adidas currently sell are: Adidas Pro Batting Glove; Adidas Sl Pro Batting Pad RH; and Adidas SL22 Pro Batting Pads.
Cricket bats that Adidas currently sell are: Adidas Libro Pro Cricket Bat and Adidas 2017 Pellara Pro.