linked their brand communication

[user_gary]

India's World Cup hopes were crushed after Sri Lanka beat it by 69 runs. Sponsors like Nokia, Pepsi, Hero Honda, Videocon and Maruti Suzuki had invested about Rs 400 crore in TV advertising, a Rs 100 crore worth of display advertising and Rs 3000 crore in media, marketing and allied industry spends.

Pepsi, which sank it's entire communication budget worth an estimated Rs 40 crore, Reebok and Visa will be most affected as they have linked their brand communication to Team India's performance.

Please explain the highlighted group of words.

[Anglika]

India's World Cup hopes were crushed after Sri Lanka beat it by 69 runs. Sponsors like Nokia, Pepsi, Hero Honda, Videocon and Maruti Suzuki had invested about Rs 400 crore in TV advertising, a Rs 100 crore worth of display advertising and Rs 3000 crore in media, marketing and allied industry spends.

Pepsi, which sank it's entire communication budget worth an estimated Rs 40 crore, Reebok and Visa will be most affected as they have linked their brand communication to Team India's performance.

Please explain the highlighted group of words.

1: The companies have paid for banners round the cricket ground on which their products are advertised.

2: sank its entire communication budget : put the whole of its annual allowance for advertising into this exercise

3: These companies have been using their sponorship of India to promote their products in advertisements