Boston’s Eastern Bank will become the official bank of Boston Red Sox baseball on NESN in 2010.

The agreement includes full bank advertising during all of NESN’s spring training and regular season game coverage, and during NESN’s one hour pre-game show – Olympia Sports presents The Boston Globe Red Sox GameDay LIVE.

The deal, which marks Eastern Bank’s largest and most aggressive advertising campaign to date, includes commercial spots in NESN’s Red Sox pre-game and game coverage and a presenting sponsorship of NESN.com’s Leading Off, according to a statement.

Eastern Bank’s sponsorship with NESN will also include an in-branch and online consumer promotion to be announced in the spring.

"Eastern Bank is proud to become the official bank of Boston Red Sox baseball on NESN, a revered sports television institution with deep roots in New England," said Richard E. Holbrook, chairman and CEO of Eastern Bank. "Through this partnership we will demonstrate how our banking, investment and insurance professionals work together as a team to provide superior service and expertise to our many customers."

"NESN is thrilled to partner with Eastern Bank, a leader in the local banking, insurance and investments industry," said NESN president and CEO Sean McGrail. "We enjoy teaming up with great companies like Eastern Bank and working closely with them to demonstrate NESN’s distinctive ability to incorporate their messages into our programming."