PHOENIX -- Chase Field, home of the Arizona Diamondbacks, is undergoing its annual facelift as Phoenix's baseball team begins spring training.
"It's the first sign that baseball season is right around the corner," head groundskeeper Grant Trenbeath said.
Crews cleaned the dirt off the retractable roof earlier this month and stripped the grass off the field.
Trenbeath said a lot of fans don't realize that the sod is replaced at Chase Field every year.
It's the groundskeeper's 17th time leading the facelift.
The crew, which includes Trenbeath's 73-year-old father, Bill, is laying 100,000 square feet of Scottsdale-grown sod this week.
Giant lights have been turned on to help the grass grow in areas untouched by sunlight.
The sod work should be finished by the end of the week and will have about five weeks to acclimate before the players take the field.