The Champions Dinner, inaugurated by Ben Hogan in 1952, is held on the Tuesday before each tournament, and is open only to past champions and certain board members of the Augusta National Golf Club. Beginning in 1963, legendary golfers, usually past champions, have hit an honorary tee shot on the morning of the first round to commence play.
In vertebrates and other hemoglobin-using creatures, arterial blood and capillary blood are bright red, as oxygen imparts a strong red color to the heme group. Deoxygenated blood is a darker shade of red; this is present in veins, and can be seen during blood donation and when venous blood samples are taken.
When the deoxygenated haemoglobin in blood reaches between 4 to 6 gm/dl, cyanosis may be seen. This blood is bluish or purple giving the skin and mucous membranes their appearance. Normally approximately 80-87% oxygen saturation would give rise to clinically apparent cyanosis. However, in cases of anemia where haemoglobin levels are low, lower oxygen saturation may show up as cyanosis.