The phrase "overshadowed on" is not correct and not usable in English.
The phrase you may be looking for is "overshadowed by" which means to be overshadowed or overshadowed by something or someone. For example: The accomplishment of her older sister was overshadowed by her recent triumph.
The recalibration of the death toll from the earthquake early on Saturday morning was quickly overshadowed on Thursday afternoon by another earthquake; this one struck in a completely different part of the country, the copper regions in the north.
And yet it was overshadowed on the national stage by another derby altogether.
7. The icon for the book app — will it be overshadowed on iPhone home screens by Angry Birds?
The semiconductor deal was promptly overshadowed on Tuesday by the news that the second-largest union of state workers had rejected their labor agreement with Mr. Cuomo.
Whatever gains it might have made were overshadowed on September 1st when former President Chen's wife, son, daughter and son-in-law were jailed for perjury.
The keynoter, Barack Obama, the African American candidate from Illinois running for Senate, may be overshadowed on Tuesday night by Mr. Kerry's wife, Teresa Heinz Kerry.
That tradition of overshadowing is likely to continue — only this year, it will be overshadowing on steroids.
For years, basketball fans have been bemoaning the fact that sponsorship deals often overshadow on-court play.
The Rev. Al Sharpton may have overshadowed others on the Ferrer team, but no one seems to wield more influence behind the scenes than Mr. Ramirez.
Evans played alongside Lester Young, who was one of the giants of the saxophone and constantly overshadowed Evans on the Basie group's studio recordings.
In the face of relatively uninspiring games, the bludgeonings have threatened to overshadow other on-court events.
