On April 16, 2008, Rentería hit his fifth career grand slam and had five RBI in a 13–2 victory over the Indians.
He had four hits on April 22 in a 10–2 win over the Rangers.
He had four hits again and five RBI in a 12–8 victory over Seattle on May 20.
He hit his sixth career grand slam on June 7 in an 8–4 victory over the Indians.
On June 17, he had his two thousandth hit (off Jonathan Sánchez) in a 5–1 victory over San Francisco.
He finished the year with a .270 batting average, 136 hits, and ten home runs.
After the season, the Tigers declined his option on October 30, and they chose not to offer arbitration on December 1, which made him a free agent.
On April 16, 2008, Rentería hit his fifth career grand slam and had five RBI in a 13–2 victory over the Indians. He had four hits on April 22 in a 10–2 win over the Rangers. He had four hits again and five RBI in a 12–8 victory over Seattle on May 20. He hit his sixth career grand slam on June 7 in an 8–4 victory over the Indians. On June 17, he had his two thousandth hit (off Jonathan Sánchez) in a 5–1 victory over San Francisco. He finished the year with a .270 batting average, 136 hits, and ten home runs. After the season, the Tigers declined his option on October 30, and they chose not to offer arbitration on December 1, which made him a free agent.
Édgar Rentería