Bosman won the last of his four caps against Australia in 2006 and has been called up by Springbok coach Peter de Villiers to prepare for the game against a Namibian Invitation XV in Windhoek on Friday.
That game comes the day before the British & Irish Lions kick-off their 10-match tour of South Africa and is the only chance de Villiers has got to take a look at his players before the three-Test Castle series against the Lions begins.
It is going to be a busy few days of rugby with the Super 14 final taking place at Pretoria's Loftus Versfeld on Saturday. That game, between the Bulls and Chiefs, means de Villiers will have to face the Namibian outfit without his Bulls players.
But the Springbok coach is delighted to be doing so after seeing Morne Steyn kick the Bulls into their second Super 14 final in three years with a magnificent display. Steyn helped himself to 22 points, including a Super Rugby record of four drop goals, in the victory over defending champions the Crusaders.
"The Bulls have done South Africa proud by reaching the final and they deserve the support of the entire country," said de Villiers.
"They put in a fantastic performance to beat the Crusaders at the weekend and they have the capacity to go all the way. Knowing that they have the support of the nation will help to inspire them even more."
Steyn's heroics have put him in line for a possible Test place outside his Bulls half-back colleague Fourie du Preez.